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Which figure of speech is used in this text? Ellie gazed at the ancient pug that seemed to sleep all day and noted, "You're an energetic puppy!"
[ "idiom", "verbal irony" ]
1
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: review
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. Alliteration is the repetition of sounds at the beginning of nearby words. What a lucky little lady you are! An allusion is a brief reference to something or someone well known, often from history or literature. "I'd better get home before I turn into a pumpkin!" Lila remarked. An idiom is an expression that cannot be understood literally. Its meaning must be learned. The assignment was a piece of cake. A simile uses like or as to compare two things that are not actually alike. The cat's fur was as dark as the night. A metaphor compares two things that are not actually alike without using like or as. The snow formed a blanket over the town. Onomatopoeia involves using a word that expresses a sound. The scrambled eggs hit the floor with a splat. Personification is giving human characteristics to nonhuman things. The trees danced in the wind. A pun involves using a word or phrase in a humorous way that suggests more than one meaning. A great new broom is sweeping the nation. Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic. Olivia seems thrilled that her car keeps breaking down. Each breakdown is as enjoyable as a punch to the face.
The text uses verbal irony, which involves saying one thing but implying something very different. An energetic puppy shows verbal irony because an old, exhausted dog is far from an energetic puppy.
Is the following trait inherited or acquired? Zoe is good at knitting hats.
[ "inherited", "acquired" ]
1
Hint: People who can knit had to learn how to do it.
closed choice
grade3
natural science
biology
Heredity
Identify inherited and acquired traits
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Children do not inherit their parents' acquired traits.
People are not born knowing how to knit. Instead, many people learn how to knit. Knitting well takes practice. So, knitting well is an acquired trait.
Which is a compound sentence?
[ "Avalanches can reach speeds of eighty miles per hour within five seconds.", "I slept deeply all night long, but this morning I still feel tired." ]
1
closed choice
grade6
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple, compound, or complex?
A clause is a group of words that contains both a subject and a predicate. An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence. the oranges on our tree are ripe The clause can stand alone. It is independent. after we pick up Kevin from work The clause cannot stand alone. It is dependent. A simple sentence is made up of a single independent clause. Ben and I spent all day relaxing by the pool. Some simple sentences have introductory phrases, but the introductory phrase is part of the predicate. In the winter, Ben usually wears his heavy coat. Ben usually wears his heavy coat in the winter. A compound sentence is made up of two independent clauses joined by a coordinating conjunction such as and, but, or, or so. We saw a flash of lightning, and seconds later we heard the rumble of thunder. A complex sentence is made up of an independent clause and a dependent clause. The dependent clause usually begins with a subordinating conjunction such as after, although, as, because, before, if, since, unless, until, when, or while. If she ever gets the chance, Terri would love to visit the Egyptian pyramids.
The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction but. I slept deeply all night long, but this morning I still feel tired.
Which figure of speech is used in this text? The comedy show was a huge success. The audience was dying of laughter the entire time.
[ "hyperbole", "euphemism" ]
0
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally. Dying of laughter is an exaggeration, since it is clear that the audience did not actually die.
Would you find the word turn on a dictionary page with the following guide words? tangerine - thy
[ "no", "yes" ]
0
yes or no
grade5
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since turn is not between the guide words tangerine - thy, it would not be found on that page.
Complete the sentence. A piece of pizza rotting in a trashcan is a ().
[ "physical change", "chemical change" ]
1
closed choice
grade2
natural science
chemistry
Physical and chemical change
Identify physical and chemical changes
Chemical changes and physical changes are two ways matter can change. In a chemical change, the type of matter changes. Burning a piece of paper is a chemical change. The paper changes into ash and smoke. In a physical change, the type of matter stays the same. Cutting a piece of paper is a physical change. The cut pieces are still made of paper. Ice melting is also a physical change. When ice melts, it changes from a solid to a liquid. But both ice and liquid water are made of the same type of matter: water! This kind of change is called a change of state.
A piece of pizza rotting is a chemical change. The matter in the pizza breaks down and slowly turns into a different type of matter.
Which of the following contains a vague pronoun reference?
[ "Even after Danny warned Alice to be careful, she dropped his handmade ceramic bowl on her foot and broke it.", "Even after Danny warned Alice to be careful, she broke his handmade ceramic bowl when she dropped it on her foot." ]
0
closed choice
grade11
language science
writing-strategies
Pronouns
Identify vague pronoun references
When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent. When Lisa and Kim finally landed, she breathed a sigh of relief. The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear. Vague pronoun references can be corrected in one of two ways: 1. Replace the pronoun with its correct antecedent: When Lisa and Kim finally landed, Lisa breathed a sigh of relief. 2. Rewrite the sentence: Lisa breathed a sigh of relief when she and Kim finally landed. A vague pronoun reference also occurs when they, them, their, theirs, it, or its is used without its antecedent. They say that this nail polish dries in less than five minutes. The pronoun they is used without its antecedent, so the meaning of the sentence is unclear. This problem can be fixed by replacing the pronoun with its missing antecedent. The advertisements say that this nail polish dries in less than five minutes.
The second answer choice contains a vague pronoun reference. The pronoun it could refer to his handmade ceramic bowl or her foot. Even after Danny warned Alice to be careful, she dropped his handmade ceramic bowl on her foot and broke it. The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is clear. Even after Danny warned Alice to be careful, she broke his handmade ceramic bowl when she dropped it on her foot.
What is the volume of a kiddie pool?
[ "1,070 liters", "1,070 milliliters" ]
0
Select the better estimate.
closed choice
grade4
natural science
units-and-measurement
Units and measurement
Choose metric units of volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters. There are 1,000 milliliters in 1 liter. So, 1 milliliter is much less than 1 liter. A raindrop has a volume of about 20 milliliters, while a large soda bottle has a volume of 2 liters. The flask shown here measures volumes up to 500 milliliters.
The better estimate for the volume of a kiddie pool is 1,070 liters. 1,070 milliliters is too little.
Which text uses the word peruse in its traditional sense?
[ "Aaron perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly.", "Aaron perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift." ]
1
closed choice
grade10
language science
writing-strategies
Word usage and nuance
Explore words with new or contested usages
Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner. When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be more commonly used, many people consider a word's traditional definition to be the correct usage. Being able to distinguish the different uses of a word can help you use it appropriately for different audiences. Britney perused her notes, carefully preparing for her exam. The traditional usage above is considered more standard. David perused the magazine, absentmindedly flipping through the pages. The nontraditional usage above is now commonly used, but traditional style guides generally advise against it.
The first text uses peruse in its traditional sense: to examine in detail. Aaron perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift. The second text uses peruse in its nontraditional sense: to look through in a casual manner. Aaron perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly. Most style guides recommend to use the traditional sense of the word peruse because it is considered more standard.
Which tense does the sentence use? The plane will land in Tokyo.
[ "future tense", "present tense", "past tense" ]
0
closed choice
grade3
language science
verbs
Verb tense
Is the sentence in the past, present, or future tense?
Present tense verbs tell you about something that is happening now. Most present-tense verbs are regular. They have no ending, or they end in -s or -es. Two verbs are irregular in the present tense, to be and to have. You must remember their forms. Past tense verbs tell you about something that has already happened. Most past-tense verbs are regular. They end in -ed. Some verbs are irregular in the past tense. You must remember their past-tense forms. Future tense verbs tell you about something that is going to happen. All future-tense verbs use the word will. Present | Past | Future walk, walks | walked | will walk go, goes | went | will go
The sentence is in future tense. You can tell because it uses will before the main verb, land. The verb tells you about something that is going to happen.
What information supports the conclusion that Zeke inherited this trait?
[ "Zeke wears glasses and so do his sisters.", "Zeke's friend also has hazel eyes.", "Zeke's biological father wears contacts in his hazel eyes." ]
2
Read the description of a trait. Zeke has hazel eyes.
closed choice
grade7
natural science
biology
Genes to traits
Inherited and acquired traits: use evidence to support a statement
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits. Offspring receive their genes, and therefore gain their inherited traits, from their biological parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Parents do not pass acquired traits down to their offspring.
Complete the sentence. In this chemical reaction, oxygen is a ().
[ "reactant", "product" ]
0
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below. The Space Shuttle program sent astronauts on 135 missions using a fleet of five shuttles between 1981 and 2011. The engines of each shuttle, like other modern rocket engines, used liquid hydrogen as fuel. When liquid hydrogen combines with liquid oxygen, an enormous amount of energy is released, along with water vapor. The shuttles used this energy to launch into space.
closed choice
grade7
natural science
chemistry
Chemical reactions
Identify reactants and products
A chemical change occurs when new substances are formed from existing substances. This process is called a chemical reaction. In a chemical reaction, one or more substances change into one or more different substances. During the reaction, the atoms of the original substances are rearranged to form other substances. The original substances in a chemical reaction are called reactants. These substances react, or go through a chemical change. The substances that are formed in a chemical reaction are called products. These substances are produced by the chemical reaction. So, in a chemical reaction, reactants go through a chemical change to form products.
Read the underlined text carefully. Look for information about what happens to oxygen in this chemical reaction. The Space Shuttle program sent astronauts on 135 missions using a fleet of five shuttles between 1981 and 2011. The engines of each shuttle, like other modern rocket engines, used liquid hydrogen as fuel. When liquid hydrogen combines with liquid oxygen, an enormous amount of energy is released, along with water vapor. The shuttles used this energy to launch into space. The underlined text tells you that when hydrogen and oxygen combine, water is formed. When hydrogen and oxygen react, or go through a chemical change, their atoms are rearranged to form water. Because oxygen reacts in this chemical reaction, oxygen is a reactant.
Which word would you find on a dictionary page with the following guide words? daily - dirt
[ "decorate", "domino" ]
0
closed choice
grade4
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since decorate is between the guide words daily - dirt, it would be found on that page.
Which figure of speech is used in this text? Shelley's Boutique claims to have "something for everyone," but it is generally understood that their target market is women of a certain age.
[ "paradox", "euphemism" ]
1
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic. Of a certain age is an indirect and generally more polite way of referring to older people.
Would you find the word ring on a dictionary page with the following guide words? ran - return
[ "no", "yes" ]
0
yes or no
grade2
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on.
Put the words in alphabetical order. Since ring is not between the guide words ran - return, it would not be found on that page.
Which type of sentence is this? Julia is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
[ "compound", "simple", "complex", "compound-complex" ]
3
closed choice
grade7
language science
grammar
Phrases and clauses
Is the sentence simple, compound, complex, or compound-complex?
A clause is a group of words that contains both a subject and a predicate. An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence. the oranges on our tree are ripe The clause can stand alone. It is independent. after we pick up Kevin from work The clause cannot stand alone. It is dependent. A simple sentence is made up of a single independent clause. Ben and I spent all day relaxing by the pool. Some simple sentences have introductory phrases, but the introductory phrase is part of the predicate. In the winter, Ben usually wears his heavy coat. Ben usually wears his heavy coat in the winter. A compound sentence is made up of two independent clauses joined by a coordinating conjunction such as and, but, or, or so. We saw the flash of lightning, and seconds later we heard a rumble of thunder. A complex sentence is made up of an independent clause and a dependent clause. The dependent clause in a complex sentence usually begins with a subordinating conjunction or relative pronoun. Subordinating conjunctions include after, although, as, because, before, if, since, unless, until, when, and while. Relative pronouns include that, which, who, whom, or whose. If she ever gets the chance, Terri would love to visit the Egyptian pyramids. During his trip to Italy, Tony visited the Trevi Fountain, which is in Rome. A compound-complex sentence is made up of two or more independent clauses and one or more dependent clauses. After Samantha left work, she stopped at the bank, and then she went to the gym. Sometimes a dependent clause in a complex or compound-complex sentence can interrupt an independent clause. Orcas that are kept in captivity often have bent dorsal fins.
The sentence is compound-complex. It is made up of two independent clauses and a dependent clause. The dependent clause begins with the relative pronoun which. Julia is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
Which of the following contains a vague pronoun reference?
[ "After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan had Bluetooth, but it needed to be fixed.", "After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan needed to be fixed, but it had Bluetooth." ]
0
closed choice
grade11
language science
writing-strategies
Pronouns
Identify vague pronoun references
When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent. When Lisa and Kim finally landed, she breathed a sigh of relief. The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear. Vague pronoun references can be corrected in one of two ways: 1. Replace the pronoun with its correct antecedent: When Lisa and Kim finally landed, Lisa breathed a sigh of relief. 2. Rewrite the sentence: Lisa breathed a sigh of relief when she and Kim finally landed. A vague pronoun reference also occurs when they, them, their, theirs, it, or its is used without its antecedent. They say that this nail polish dries in less than five minutes. The pronoun they is used without its antecedent, so the meaning of the sentence is unclear. This problem can be fixed by replacing the pronoun with its missing antecedent. The advertisements say that this nail polish dries in less than five minutes.
The second answer choice contains a vague pronoun reference. The pronoun it could refer to the sedan or Bluetooth. After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan had Bluetooth, but it needed to be fixed. The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is clear. After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan needed to be fixed, but it had Bluetooth.
Which tense does the sentence use? The basketball game will begin in a minute.
[ "future tense", "present tense", "past tense" ]
0
closed choice
grade2
language science
verbs
Verb tense
Is the sentence in the past, present, or future tense?
Present tense verbs tell you about something that is happening now. Most present-tense verbs are regular. They have no ending, or they end in -s or -es. Two verbs are irregular in the present tense, to be and to have. You must remember their forms. Past tense verbs tell you about something that has already happened. Most past-tense verbs are regular. They end in -ed. Some verbs are irregular in the past tense. You must remember their past-tense forms. Future tense verbs tell you about something that is going to happen. All future-tense verbs use the word will. Present | Past | Future walk, walks | walked | will walk go, goes | went | will go
The sentence is in future tense. You can tell because it uses will before the main verb, begin. The verb tells you about something that is going to happen.
Which object has more thermal energy?
[ "a 125-gram glass of grape juice at a temperature of 75°F", "a 125-gram glass of grape juice at a temperature of 50°F" ]
0
The objects are identical except for their temperatures.
closed choice
grade3
natural science
physics
Heat and thermal energy
How is temperature related to thermal energy?
All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy. Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both more thermal energy and a higher temperature.
The two glasses of grape juice have the same mass but different temperatures. Since the 75°F glass of grape juice is hotter than the 50°F glass of grape juice, it has more thermal energy.
What is the source of the allusion in the sentence below? Nate was enjoying the lush life his newfound riches had brought him, but he couldn't help but think of his latest cholesterol reading as a Sword of Damocles.
[ "ancient legend", "Shakespeare" ]
0
closed choice
grade12
language science
figurative-language
Literary devices
Recall the source of an allusion
An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words. The protean nature of the disease makes it difficult to diagnose. The word protean is an allusion to the sea god Proteus in Greek mythology. Because the sea is constantly changing, to describe something as protean suggests that it is variable or in flux.
The source of the allusion Sword of Damocles is ancient legend. According to legend, when Damocles wished his life were as full of luxuries as that of the tyrant Dionysis, Dionysis invited Damocles to a sumptuous banquet. Above Damocles' seat at the feast, Dionysis had placed a sword, suspended only by a thin hair, demonstrating the fragile nature of fortune. The allusion Sword of Damocles means a reminder that one is vulnerable.
Suppose Mia decides to borrow the book from the library. Which result would be a cost?
[ "Mia will save some money by not buying the book.", "Mia will give up the chance to keep the book as long as she wants." ]
1
Mia is deciding whether to buy a copy of a book or borrow it from the library. She would like to be able to keep the book as long as she wants, but buying the book would cost money. She could borrow the book for free, but she would have to return it in a few weeks.
closed choice
grade5
social science
economics
Basic economic principles
Costs and benefits
Before you decide to do something, it is often helpful to list costs and benefits. Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need. Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you want or need.
This result is a cost. It involves giving up or spending something that Mia wants or needs: Mia will give up the chance to keep the book as long as she wants.
How long is an ice skate?
[ "28 meters", "28 millimeters", "28 centimeters", "28 kilometers" ]
2
Select the best estimate.
closed choice
grade7
natural science
units-and-measurement
Units and measurement
Choose metric units of distance, mass, and volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is larger than 1 centimeter, and 1 centimeter is larger than 1 millimeter. The tip of the pencil shown here is only 1 millimeter wide, but the pencil is about 16 centimeters long. A red fox is about 1 meter long. The Sydney Harbour Bridge in Australia is about 1,000 meters, or 1 kilometer, in length.
The best estimate for the length of an ice skate is 28 centimeters. 28 millimeters is too short. 28 meters and 28 kilometers are too long.
Which text uses the word peruse in its traditional sense?
[ "Emmet perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly.", "Emmet perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift." ]
1
closed choice
grade12
language science
writing-strategies
Word usage and nuance
Explore words with new or contested usages
Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner. When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be more commonly used, many people consider a word's traditional definition to be the correct usage. Being able to distinguish the different uses of a word can help you use it appropriately for different audiences. Britney perused her notes, carefully preparing for her exam. The traditional usage above is considered more standard. David perused the magazine, absentmindedly flipping through the pages. The nontraditional usage above is now commonly used, but traditional style guides generally advise against it.
The first text uses peruse in its traditional sense: to examine in detail. Emmet perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift. The second text uses peruse in its nontraditional sense: to look through in a casual manner. Emmet perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly. Most style guides recommend to use the traditional sense of the word peruse because it is considered more standard.
Which greeting is correct for a letter?
[ "Dear Grandma Bella,", "Dear grandma Bella," ]
0
closed choice
grade3
language science
punctuation
Formatting
Greetings and closings of letters
A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue. Dear Aunt Sue, I'm glad you could come to my party, and thank you for the birthday gift. I could not have asked for a better one! Every time I see it, I think of you. With love, Rory
The second greeting is correct: Its first word is capitalized, and it ends with a comma. Grandma Bella is capitalized because it is a proper noun.
What is the source of the allusion in the sentence below? Julie warned her youngest son not to cry wolf while wrestling with his older brother.
[ "U.S. history", "a fable" ]
1
closed choice
grade8
language science
figurative-language
Literary devices
Recall the source of an allusion
An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words. "I'd better get home before I turn into a pumpkin!" Lila remarked. Here, Lila alludes to the fairy tale "Cinderella," in which Cinderella must leave the ball before the coach that brought her transforms into a pumpkin. The allusion shows that Lila must depart immediately.
The source of the allusion cry wolf is a fable. In the fable "The Boy Who Cried Wolf," a shepherd boy repeatedly tricks people in his village by falsely claiming that a wolf is coming to eat his flock. When a wolf actually comes and the boy cries for help, nobody believes him or comes to his aid. The allusion cry wolf means to raise a false alarm.
Suppose Vicky decides to see the hippopotamuses. Which result would be a cost?
[ "Vicky will spend more time walking to the hippopotamuses. They are on the other side of the zoo, but the storks are close by.", "Vicky will enjoy seeing the hippopotamuses more than she would have enjoyed seeing the storks." ]
0
Vicky is deciding whether to see the hippopotamuses or the storks at the zoo. She wants to see lots of animals, but the zoo is closing soon.
closed choice
grade5
social science
economics
Basic economic principles
Costs and benefits
Before you decide to do something, it is often helpful to list costs and benefits. Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need. Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you want or need.
This result is a cost. It involves giving up or spending something that Vicky wants or needs: Vicky will spend more time walking to the hippopotamuses. They are on the other side of the zoo, but the storks are close by.
Which greeting is correct for a letter?
[ "Dear Aunt Annie,", "Dear aunt annie," ]
0
closed choice
grade3
language science
punctuation
Formatting
Greetings and closings of letters
A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue. Dear Aunt Sue, I'm glad you could come to my party, and thank you for the birthday gift. I could not have asked for a better one! Every time I see it, I think of you. With love, Rory
The first greeting is correct: Its first word is capitalized, and it ends with a comma. Aunt Annie is capitalized because it is a proper noun.
How long is a road from one end of a city to the other?
[ "10 meters", "10 kilometers" ]
1
Select the better estimate.
closed choice
grade3
natural science
units-and-measurement
Units and measurement
Choose metric units of distance
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers? The number 16 on its own does not give you much information about the length of the pencil. That is because the units are missing. Now look at the drawing of the pencil and the ruler. The ruler shows that the units are centimeters. So, the length of the pencil is 16 centimeters. There are 100 centimeters in 1 meter. So, 1 centimeter is much shorter than 1 meter. There are 1,000 meters in 1 kilometer. So, 1 meter is much shorter than 1 kilometer.
The better estimate for the length of a road from one end of a city to the other is 10 kilometers. 10 meters is too short.
Which tense does the sentence use? The cousins will complete the puzzle before long.
[ "past tense", "future tense", "present tense" ]
1
closed choice
grade3
language science
verbs
Verb tense
Is the sentence in the past, present, or future tense?
Present tense verbs tell you about something that is happening now. Most present-tense verbs are regular. They have no ending, or they end in -s or -es. Two verbs are irregular in the present tense, to be and to have. You must remember their forms. Past tense verbs tell you about something that has already happened. Most past-tense verbs are regular. They end in -ed. Some verbs are irregular in the past tense. You must remember their past-tense forms. Future tense verbs tell you about something that is going to happen. All future-tense verbs use the word will. Present | Past | Future walk, walks | walked | will walk go, goes | went | will go
The sentence is in future tense. You can tell because it uses will before the main verb, complete. The verb tells you about something that is going to happen.
What does the verbal irony in this text suggest? According to Mr. Carter's kids, his snoring is as quiet as a jackhammer.
[ "The snoring occurs in bursts.", "The snoring is loud." ]
1
closed choice
grade7
language science
figurative-language
Literary devices
Interpret figures of speech
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic. Olivia seems thrilled that her car keeps breaking down. Each breakdown is as enjoyable as a punch to the face.
The text uses verbal irony, which involves saying one thing but implying something very different. As quiet as a jackhammer suggests that the snoring is loud. A jackhammer is not quiet, and neither is Mr. Carter's snoring.
Is the following trait inherited or acquired? Troy plays baseball.
[ "acquired", "inherited" ]
0
closed choice
grade5
natural science
biology
Traits and heredity
Identify inherited and acquired traits
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Children do not inherit their parents' acquired traits.
People are not born knowing how to play baseball. Instead, some people learn how to play baseball. Playing the sport takes practice. So, playing baseball is an acquired trait.
Which word would you find on a dictionary page with the following guide words? caribou - crunch
[ "cuff", "clock" ]
1
closed choice
grade8
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since clock is between the guide words caribou - crunch, it would be found on that page.
According to the passage, which statement is true?
[ "The Senate is a part of Congress.", "Congress does not have legislative power." ]
0
The Legislative Branch is described in Article I of the United States Constitution. Read Section 1 of Article I. Then answer the question. All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives. legislative: law-making vested in: given to consist: be made up of
closed choice
grade8
social science
civics
Government
The Legislative Branch
What do these two changes have in common? a copper statue turning green rust forming on a bicycle frame
[ "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes.", "Both are caused by cooling." ]
2
closed choice
grade4
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change caused by heating. When paper gets hot enough, it re­acts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. A change of state is a type of physical change. Changes of state can be caused by heating or cooling. For example, ice melting is a physical change that can be caused by heating. Ice and liquid water are made of the same type of matter: water. The law of conservation of mass says that all physical and chemical changes conserve mass. Conserve means to keep the same. So, the total mass before a physical or chemical change is equal to the total mass after the change.
Step 1: Think about each change. A copper statue turning green is a chemical change. The copper reacts with oxygen in the air. This reaction forms a different type of matter called copper oxide. The copper oxide is green. Rust forming on a bicycle frame is a chemical change. Oxygen in the air reacts with iron in the bicycle frame. The outside of the frame turns into a different type of matter called rust. Rust is reddish-brown and falls apart easily. Step 2: Look at each answer choice. Both are only physical changes. Both changes are chemical changes. They are not physical changes. Both are chemical changes. Both changes are chemical changes. The type of matter before and after each change is different. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
Read the following text from a student essay. How can the writer best improve his or her grammar and mechanics? Everyone agree that recess is important for children in elementary school, but what about middle school students? I believe that students in middle school needs time to relax and have fun during the school day. A period of free time in the afternoons give students the opportunity to go outside and enjoy some fresh air. Studies shows that exercise benefits students' attention spans. Exercise can also reduce stress, which many middle school students face on a daily basis. Therefore, middle school students in our country deserves recess, too.
[ "by fixing subject-verb agreement errors", "by adding missing commas" ]
0
closed choice
grade6
language science
writing-strategies
Editing and revising
Suggest appropriate revisions
When you review a fellow student's writing, try to make your feedback clear and specific. You can use questions such as the following to guide your feedback: Ideas and development: Does the writer express a clear main idea and develop it with evidence, examples, and analysis? Organization: Does the writer order ideas in a clear, logical way so that the ideas build on one another and are easy to follow? Sentence fluency: Do the writer's sentences vary in structure and length, or does the writing sound choppy, rambling, or repetitive? Word choice: Does the writer use words accurately and precisely, avoiding excessive repetition or inappropriate language to create clear, effective, and engaging writing? Grammar and mechanics: Does the writer use accurate spelling, punctuation, and grammar to create writing that is correct and easy to read?
The writer could best improve his or her grammar and mechanics by fixing subject-verb agreement errors. For example, the writer could change the first underlined verb to agree with the indefinite pronoun everyone and the others to agree with their simple subjects. Everyone agree that recess is important for children in elementary school, but what about middle school students? I believe that students in middle school needs time to relax and have fun during the school day. A period of free time in the afternoons give students the opportunity to go outside and enjoy some fresh air. Studies shows that exercise benefits students' attention spans. Exercise can also reduce stress, which many middle school students face on a daily basis. Therefore, middle school students in our country deserves recess, too.
What is the volume of a bathtub?
[ "310 milliliters", "310 liters" ]
1
Select the better estimate.
closed choice
grade5
natural science
units-and-measurement
Units and measurement
Choose metric units of volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters. There are 1,000 milliliters in 1 liter. So, 1 milliliter is much less than 1 liter. A raindrop has a volume of about 20 milliliters, while a large soda bottle has a volume of 2 liters. The flask shown here measures volumes up to 500 milliliters.
The better estimate for the volume of a bathtub is 310 liters. 310 milliliters is too little.
Which word would you find on a dictionary page with the following guide words? angle - assign
[ "architect", "afford" ]
0
closed choice
grade6
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since architect is between the guide words angle - assign, it would be found on that page.
Which figure of speech is used in this text? You're easy on the eyes, Hard on the heart —Terri Clark, "You're Easy on the Eyes"
[ "anaphora", "antithesis" ]
1
closed choice
grade11
language science
figurative-language
Literary devices
Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses. We are united. We are powerful. We are winners. Antithesis involves contrasting opposing ideas within a parallel grammatical structure. I want to help, not to hurt. Apostrophe is a direct address to an absent person or a nonhuman entity. Oh, little bird, what makes you sing so beautifully? Assonance is the repetition of a vowel sound in a series of nearby words. Try to light the fire. Chiasmus is an expression in which the second half parallels the first but reverses the order of words. Never let a fool kiss you or a kiss fool you. Understatement involves deliberately representing something as less serious or important than it really is. As you know, it can get a little cold in the Antarctic.
The text uses antithesis, the contrasting of opposing ideas within a parallel grammatical structure. Clark contrasts two descriptions of a person, easy on the eyes and hard on the heart.
Suppose Bella decides to take a trip to Michigan. Which result would be a cost?
[ "Bella will give up the chance to go to North Dakota. She would have enjoyed a trip to North Dakota more than Michigan.", "Bella will save some money. Plane tickets for Bella to get to Michigan are less expensive than tickets to North Dakota." ]
0
Bella is deciding whether to take a trip to North Dakota or Michigan. She wants to enjoy her trip. But she is also trying to save money.
closed choice
grade5
social science
economics
Basic economic principles
Costs and benefits
Before you decide to do something, it is often helpful to list costs and benefits. Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need. Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you want or need.
This result is a cost. It involves giving up or spending something that Bella wants or needs: Bella will give up the chance to go to North Dakota. She would have enjoyed a trip to North Dakota more than Michigan.
How long is a car?
[ "5 inches", "5 yards" ]
1
Select the better estimate.
closed choice
grade2
natural science
units-and-measurement
Units and measurement
Choose customary units of distance
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Imagine being told that a pencil is 8 long. You might be thinking, 8 what? Is the pencil 8 inches long? 8 feet? 8 miles? The number 8 on its own does not give you much information about the length of the pencil. That is because the units are missing. Now look at the drawing of the pencil and the ruler. The ruler shows that the units are inches. So, the length of the pencil is 8 inches. There are 12 inches in 1 foot. So, 1 inch is much shorter than 1 foot. There are 3 feet in 1 yard. So, 1 foot is shorter than 1 yard.
The better estimate for the length of a car is 5 yards. 5 inches is too short.
What do these two changes have in common? tearing a piece of paper shaking up salad dressing
[ "Both are caused by cooling.", "Both are only physical changes.", "Both are chemical changes.", "Both are caused by heating." ]
1
closed choice
grade4
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change caused by heating. When paper gets hot enough, it re­acts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. A change of state is a type of physical change. Changes of state can be caused by heating or cooling. For example, ice melting is a physical change that can be caused by heating. Ice and liquid water are made of the same type of matter: water. The law of conservation of mass says that all physical and chemical changes conserve mass. Conserve means to keep the same. So, the total mass before a physical or chemical change is equal to the total mass after the change.
Step 1: Think about each change. Tearing a piece of paper is a physical change. The paper tears into pieces. But each piece is still made of paper. Shaking up salad dressing is a physical change. The different parts mix together, but they are still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
What is the mass of the Statue of Liberty?
[ "225 tons", "225 pounds", "225 ounces" ]
0
Select the best estimate.
closed choice
grade4
natural science
units-and-measurement
Units and measurement
Choose customary units of mass
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Mass is a measurement of how much matter something contains. There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or tons. There are 16 ounces in 1 pound and 2,000 pounds in 1 ton. So, 1 ounce is less than 1 pound and much less than 1 ton. A slice of bread has a mass of about 1 ounce, while a can of beans has a mass of about 1 pound. A small car has a mass of about 1 ton.
The best estimate for the mass of the Statue of Liberty is 225 tons. 225 ounces and 225 pounds are both too light.
Select the mammal.
[ "penguin", "keel-billed toucan", "American bullfrog", "koala" ]
3
closed choice
grade5
natural science
biology
Classification
Identify mammals, birds, fish, reptiles, and amphibians
Mammals have hair or fur and feed their young milk.
A koala is a mammal. It has fur and feeds its young milk. Koalas sleep for up to 20 hours a day! A penguin is a bird. It has feathers, two wings, and a beak. Penguins live near water. Penguins cannot fly! They use their wings to swim. A keel-billed toucan is a bird. It has feathers, two wings, and a beak. Toucans have large beaks. A toucan's beak can be half as long as its body. An American bullfrog is an amphibian. It has moist skin and begins its life in water. Frogs live near water or in damp places. Most frogs lay their eggs in water.
How long is a long-distance running race?
[ "11 millimeters", "11 meters", "11 kilometers", "11 centimeters" ]
2
Select the best estimate.
closed choice
grade7
natural science
units-and-measurement
Units and measurement
Choose metric units of distance, mass, and volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is larger than 1 centimeter, and 1 centimeter is larger than 1 millimeter. The tip of the pencil shown here is only 1 millimeter wide, but the pencil is about 16 centimeters long. A red fox is about 1 meter long. The Sydney Harbour Bridge in Australia is about 1,000 meters, or 1 kilometer, in length.
The best estimate for the length of a long-distance running race is 11 kilometers. 11 millimeters, 11 centimeters, and 11 meters are all too short.
What information supports the conclusion that Jamie acquired this trait?
[ "Jamie can cook food over a fire.", "Jamie learned how to build a fire at summer camp." ]
1
Read the description of a trait. Jamie knows how to build a fire.
closed choice
grade5
natural science
biology
Traits and heredity
Inherited and acquired traits: use evidence to support a statement
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment.
What do these two changes have in common? slicing cheese carving a piece of wood
[ "Both are caused by heating.", "Both are chemical changes.", "Both are caused by cooling.", "Both are only physical changes." ]
3
closed choice
grade3
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change caused by heating. When paper gets hot enough, it re­acts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. A change of state is a type of physical change. Changes of state can be caused by heating or cooling. For example, ice melting is a physical change that can be caused by heating. Ice and liquid water are made of the same type of matter: water. The law of conservation of mass says that all physical and chemical changes conserve mass. Conserve means to keep the same. So, the total mass before a physical or chemical change is equal to the total mass after the change.
Step 1: Think about each change. Slicing cheese is a physical change. The cheese changes shape. But it is still made of the same type of matter. Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
Which figure of speech is used in this text? I must have eaten too much of Jacob's homemade chili, because now I'm so full I could explode!
[ "paradox", "hyperbole" ]
1
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally. So full I could explode is an exaggeration, since it is clear that the speaker is not actually in danger of exploding.
What is the source of the allusion in the sentence below? Scott got off the mountain by the skin of his teeth.
[ "the Bible", "a movie" ]
0
closed choice
grade8
language science
figurative-language
Literary devices
Recall the source of an allusion
An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words. "I'd better get home before I turn into a pumpkin!" Lila remarked. Here, Lila alludes to the fairy tale "Cinderella," in which Cinderella must leave the ball before the coach that brought her transforms into a pumpkin. The allusion shows that Lila must depart immediately.
The source of the allusion by the skin of his teeth is the Bible. In the Bible, Job complains to God about his hardships, saying that both strangers and those he loves have turned against him. He says, "My bone cleaveth to my skin and to my flesh, and I am escaped with the skin of my teeth." Scholars have long debated the exact meaning of the phrase, but many claim that Job is saying that he narrowly escaped death. The allusion by the skin of his teeth means just barely.
Which word would you find on a dictionary page with the following guide words? pleasant - push
[ "protect", "parrot" ]
0
closed choice
grade3
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since protect is between the guide words pleasant - push, it would be found on that page.
Select the one substance that is not a rock.
[ "Brass is made by humans. It is not a pure substance.", "Shale is a solid. It is not a pure substance.", "Granodiorite is not a pure substance. It is a solid." ]
0
closed choice
grade4
natural science
earth-science
Rocks and minerals
Identify rocks using properties
Rocks are made of minerals. Here are some properties of rocks: They are solid. They are formed in nature. They are not made by living things. They are not pure substances.
Compare the properties of each substance to the properties of rocks. Select the substance whose properties do not match those of rocks. Brass is made by humans. But rocks are not made by living things. So, brass is not a rock. Granodiorite is a rock. Shale is a rock.
What information supports the conclusion that Marie inherited this trait?
[ "Marie and her mother both wear their hair in braids.", "Marie's parents have red hair. They passed down this trait to Marie." ]
1
Read the description of a trait. Marie has red hair.
closed choice
grade3
natural science
biology
Heredity
Inherited and acquired traits: use evidence to support a statement
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment.
Would you find the word and on a dictionary page with the following guide words? afraid - area
[ "yes", "no" ]
0
yes or no
grade2
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on.
Put the words in alphabetical order. Since and is between the guide words afraid - area, it would be found on that page.
Which figure of speech is used in this text? When the coach asked whether we wanted to try out the new trampoline, we jumped at the chance.
[ "pun", "simile" ]
0
closed choice
grade10
language science
figurative-language
Literary devices
Classify figures of speech: review
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. Alliteration is the repetition of sounds at the beginning of nearby words. What a lucky little lady you are! An allusion is a brief reference to something or someone well known, often from history or literature. "I'd better get home before I turn into a pumpkin!" Lila remarked. An idiom is an expression that cannot be understood literally. Its meaning must be learned. The assignment was a piece of cake. A simile uses like or as to compare two things that are not actually alike. The cat's fur was as dark as the night. A metaphor compares two things that are not actually alike without using like or as. The snow formed a blanket over the town. Onomatopoeia involves using a word that expresses a sound. The scrambled eggs hit the floor with a splat. Personification is giving human characteristics to nonhuman things. The trees danced in the wind. A pun involves using a word or phrase in a humorous way that suggests more than one meaning. A great new broom is sweeping the nation. Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic. Olivia seems thrilled that her car keeps breaking down. Each breakdown is as enjoyable as a punch to the face.
The text uses a pun, a word or phrase that humorously suggests more than one meaning. Jumped means showed eagerness. It also refers to what people do on a trampoline.
Select the living thing.
[ "iceberg", "pushpin", "strawberry bush", "soap bubble" ]
2
closed choice
grade4
natural science
biology
Classification
Identify living and nonliving things
All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell. All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change. All living things sense changes in their environment. Living things might sense changes by seeing, smelling, hearing, or feeling. Living things can respond to the changes they sense.
An iceberg is not a living thing. An iceberg does not have all the traits of a living thing. It may grow or melt in response to the world around it, but it does not need food. A pushpin is not a living thing. Pushpins do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A strawberry bush is a living thing. Strawberry bushes grow and respond to their environment. They need food and water. Strawberry bushes are made up of many cells. Strawberry bushes are plants. They make their own food using water, carbon dioxide, and energy from sunlight. A soap bubble is not a living thing. A soap bubble may grow or pop in response to the world around it. But it does not have all the traits of a living thing. It does not need food.
Which figure of speech is used in this text? Rosanne's Boutique claims to have "something for everyone," but it is generally understood that their target market is women of a certain age.
[ "euphemism", "oxymoron" ]
0
closed choice
grade10
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic. Of a certain age is an indirect and generally more polite way of referring to older people.
Complete the sentence. An igneous rock becoming a metamorphic rock is a ().
[ "physical change", "chemical change" ]
1
closed choice
grade5
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule. In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form new molecules. The types of molecules in matter before and after a chemical change are always different. Burning a piece of paper is a chemical change. As paper burns, paper molecules react with oxygen molecules in the air. This reaction breaks the chemical bonds in the molecules. The atoms then relink and form different molecules. For example, carbon dioxide molecules are created when paper burns. In a physical change, chemical bonds do not break. The types of molecules in matter before and after a physical change are always the same. A change of state is a type of physical change. For example, water vaporizing is a physical change. Liquid water and water vapor are made of the same type of matter: water.
An igneous rock becoming a metamorphic rock is a chemical change. Over millions of years, heat and pressure can break the chemical bonds in the molecules of the igneous rock. When this happens, a new rock with different molecules is formed. The metamorphic rock is made up of a different type of matter than the igneous rock.
What is the source of the allusion in the sentence below? My sister takes the lion's share of the space in our closet.
[ "a fable", "a song" ]
0
closed choice
grade7
language science
figurative-language
Literary devices
Recall the source of an allusion
An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words. "I'd better get home before I turn into a pumpkin!" Lila remarked. Here, Lila alludes to the fairy tale "Cinderella," in which Cinderella must leave the ball before the coach that brought her transforms into a pumpkin. The allusion shows that Lila must depart immediately.
The source of the allusion the lion's share is a fable. In one of Aesop's fables, four animals go on a hunt assuming that they will split their prize equally, but the lion, the most powerful animal, takes more than the other members of the group. The allusion the lion's share means the largest portion.
Complete the sentence. Bubbles forming when baking soda and vinegar are mixed is a ().
[ "chemical change", "physical change" ]
0
closed choice
grade3
natural science
chemistry
Physical and chemical change
Identify physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. Cutting a piece of paper is a physical change. The cut pieces are still made of paper. A change of state is a type of physical change. For example, ice melting is a physical change. Ice and liquid water are made of the same type of matter: water.
Bubbles forming when baking soda and vinegar are mixed is a chemical change. The baking soda and vinegar change into different types of matter. Some of this matter bubbles up as a gas.
What is the volume of a water bottle?
[ "3 cups", "3 fluid ounces", "3 gallons" ]
0
Select the best estimate.
closed choice
grade4
natural science
units-and-measurement
Units and measurement
Choose customary units of volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups, or gallons. As the diagram shows, there are 8 fluid ounces in 1 cup and 16 cups in 1 gallon. So, 1 fluid ounce is less than 1 cup and much less than 1 gallon. A glass of milk has a volume of about 8 fluid ounces, or 1 cup. A jug of milk has a volume of 1 gallon.
The best estimate for the volume of a water bottle is 3 cups. 3 fluid ounces is too little and 3 gallons is too much.
Which type of sentence is this? Becky is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
[ "compound", "complex", "simple", "compound-complex" ]
3
closed choice
grade8
language science
grammar
Phrases and clauses
Is the sentence simple, compound, complex, or compound-complex?
A clause is a group of words that contains both a subject and a predicate. An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence. the oranges on our tree are ripe The clause can stand alone. It is independent. after we pick up Kevin from work The clause cannot stand alone. It is dependent. A simple sentence is made up of a single independent clause. Ben and I spent all day relaxing by the pool. Some simple sentences have introductory phrases, but the introductory phrase is part of the predicate. In the winter, Ben usually wears his heavy coat. Ben usually wears his heavy coat in the winter. A compound sentence is made up of two independent clauses joined by a coordinating conjunction such as and, but, or, or so. We saw the flash of lightning, and seconds later we heard a rumble of thunder. A complex sentence is made up of an independent clause and a dependent clause. The dependent clause in a complex sentence usually begins with a subordinating conjunction or relative pronoun. Subordinating conjunctions include after, although, as, because, before, if, since, unless, until, when, and while. Relative pronouns include that, which, who, whom, or whose. If she ever gets the chance, Terri would love to visit the Egyptian pyramids. During his trip to Italy, Tony visited the Trevi Fountain, which is in Rome. A compound-complex sentence is made up of two or more independent clauses and one or more dependent clauses. After Samantha left work, she stopped at the bank, and then she went to the gym. Sometimes a dependent clause in a complex or compound-complex sentence can interrupt an independent clause. Orcas that are kept in captivity often have bent dorsal fins.
The sentence is compound-complex. It is made up of two independent clauses and a dependent clause. The dependent clause begins with the relative pronoun which. Becky is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
Based on this information, what is this fly's phenotype for the body color trait?
[ "a gray body", "a black body" ]
1
In a group of fruit flies, some individuals have a gray body and others have a black body. In this group, the gene for the body color trait has two alleles. The allele for a gray body (B) is dominant over the allele for a black body (b). A certain fruit fly from this group has the homozygous genotype bb for the body color gene.
closed choice
grade7
natural science
biology
Genes to traits
Genetics vocabulary: dominant and recessive
All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different alleles, or forms, that can cause different versions of a trait. For example, flower color is a trait in pea plants. The gene for this trait has two possible alleles. Each allele is represented by an uppercase or lowercase letter. The allele F is for purple flowers, and the allele f is for white flowers. Each pea plant has two alleles for the flower color gene—one allele inherited from each parent. An organism's genotype for a gene is its combination of alleles for that gene. So, a pea plant may have a genotype of FF, Ff, or ff for the flower color gene. An organism's phenotype for a trait is its observable version of that trait, which depends on the organism's combination of alleles. A pea plant may have a phenotype of purple flowers or white flowers for the flower color trait. Some traits, like flower color in pea plants, are controlled by a single gene. Most plants and animals have a genotype made up of two alleles for these traits. These two alleles determine whether an organism is homozygous or heterozygous for the gene. An organism with two identical alleles for a gene is homozygous for that gene. A pea plant with the genotype FF or ff is homozygous for the flower color gene. An organism with two different alleles for a gene is heterozygous for that gene. A pea plant with the genotype Ff is heterozygous for the flower color gene. The types of alleles in an organism's genotype determine the organism's phenotype. Some alleles have types called dominant and recessive. These two types can cause different versions of a trait to appear as the organism's phenotype. A dominant allele causes its version of the trait to appear even when the organism also has a recessive allele for the gene. In pea plants, the F allele, which causes purple flowers, is dominant over the f allele. A pea plant with at least one F allele will have the F allele's version of the flower color trait. So, a plant with the genotype FF or Ff will have purple flowers. A recessive allele causes its version of the trait to appear only when the organism does not have any dominant alleles for the gene. In pea plants, the f allele, which causes white flowers, is recessive to the F allele. A pea plant with only f alleles will have the f allele's version of the flower color trait. So, a plant with the genotype ff will have white flowers.
The fruit fly's genotype for the body color gene is bb. The fruit fly's genotype of bb has only b alleles. The b allele is for a black body. So, the fruit fly's phenotype for the body color trait must be a black body. To check this answer, consider whether the fruit fly's alleles are dominant or recessive. The allele for a gray body (B) is dominant over the allele for a black body (b). This means B is a dominant allele, and b is a recessive allele. The fruit fly's genotype of bb has only recessive alleles. An organism with only recessive alleles for a gene will have the recessive allele's version of the trait. So, the fruit fly's phenotype for the body color trait must be a black body.
Which tense does the sentence use? Jenna orders a roast beef sandwich.
[ "present tense", "past tense", "future tense" ]
0
closed choice
grade3
language science
verbs
Verb tense
Is the sentence in the past, present, or future tense?
Present tense verbs tell you about something that is happening now. Most present-tense verbs are regular. They have no ending, or they end in -s or -es. Two verbs are irregular in the present tense, to be and to have. You must remember their forms. Past tense verbs tell you about something that has already happened. Most past-tense verbs are regular. They end in -ed. Some verbs are irregular in the past tense. You must remember their past-tense forms. Future tense verbs tell you about something that is going to happen. All future-tense verbs use the word will. Present | Past | Future walk, walks | walked | will walk go, goes | went | will go
The sentence is in present tense. You can tell because it uses a present-tense verb, orders. The verb ends in -s and tells you about something that is true or happening now.
Based on this information, what is this plant's phenotype for the stem height trait?
[ "a tall stem", "a short stem" ]
0
In a group of pea plants, some individuals have a tall stem and others have a short stem. In this group, the gene for the stem height trait has two alleles. The allele for a short stem (h) is recessive to the allele for a tall stem (H). A certain pea plant from this group has the heterozygous genotype Hh for the stem height gene.
closed choice
grade7
natural science
biology
Genes to traits
Genetics vocabulary: dominant and recessive
All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different alleles, or forms, that can cause different versions of a trait. For example, flower color is a trait in pea plants. The gene for this trait has two possible alleles. Each allele is represented by an uppercase or lowercase letter. The allele F is for purple flowers, and the allele f is for white flowers. Each pea plant has two alleles for the flower color gene—one allele inherited from each parent. An organism's genotype for a gene is its combination of alleles for that gene. So, a pea plant may have a genotype of FF, Ff, or ff for the flower color gene. An organism's phenotype for a trait is its observable version of that trait, which depends on the organism's combination of alleles. A pea plant may have a phenotype of purple flowers or white flowers for the flower color trait. Some traits, like flower color in pea plants, are controlled by a single gene. Most plants and animals have a genotype made up of two alleles for these traits. These two alleles determine whether an organism is homozygous or heterozygous for the gene. An organism with two identical alleles for a gene is homozygous for that gene. A pea plant with the genotype FF or ff is homozygous for the flower color gene. An organism with two different alleles for a gene is heterozygous for that gene. A pea plant with the genotype Ff is heterozygous for the flower color gene. The types of alleles in an organism's genotype determine the organism's phenotype. Some alleles have types called dominant and recessive. These two types can cause different versions of a trait to appear as the organism's phenotype. A dominant allele causes its version of the trait to appear even when the organism also has a recessive allele for the gene. In pea plants, the F allele, which causes purple flowers, is dominant over the f allele. A pea plant with at least one F allele will have the F allele's version of the flower color trait. So, a plant with the genotype FF or Ff will have purple flowers. A recessive allele causes its version of the trait to appear only when the organism does not have any dominant alleles for the gene. In pea plants, the f allele, which causes white flowers, is recessive to the F allele. A pea plant with only f alleles will have the f allele's version of the flower color trait. So, a plant with the genotype ff will have white flowers.
You need to determine the pea plant's phenotype for the stem height trait. First, consider the alleles in the plant's genotype for the stem height gene. Then, decide whether these alleles are dominant or recessive. The allele for a short stem (h) is recessive to the allele for a tall stem (H). This means H is a dominant allele, and h is a recessive allele. The pea plant's genotype of Hh has one dominant allele and one recessive allele. An organism with at least one dominant allele for a gene will have the dominant allele's version of the trait. So, the pea plant's phenotype for the stem height trait must be a tall stem.
Which phrase has a more negative connotation?
[ "steal something", "take something" ]
0
closed choice
grade4
language science
vocabulary
Shades of meaning
Positive and negative connotation
Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations. For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations. Eager has a positive connotation. It is a nice word. An eager person is happy and excited. Impatient has a negative connotation. It is not a nice word. An impatient person is often pushy and demanding.
Steal something has a more negative connotation. If you steal something, you take it without asking.
What is the volume of a kiddie pool?
[ "1,015 liters", "1,015 milliliters" ]
0
Select the better estimate.
closed choice
grade4
natural science
units-and-measurement
Units and measurement
Choose metric units of volume
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters. There are 1,000 milliliters in 1 liter. So, 1 milliliter is much less than 1 liter. A raindrop has a volume of about 20 milliliters, while a large soda bottle has a volume of 2 liters. The flask shown here measures volumes up to 500 milliliters.
The better estimate for the volume of a kiddie pool is 1,015 liters. 1,015 milliliters is too little.
Which figure of speech is used in this text? Kamal returned to the parking lot to find his car somewhat destroyed. Apparently someone had crashed into it while he was working and had broken the entire front windshield.
[ "oxymoron", "euphemism" ]
0
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses an oxymoron, a joining of two seemingly contradictory terms. Somewhat destroyed is a contradiction, because somewhat means partially or moderately, and destroyed implies totally wrecked.
Which ping pong ball has more thermal energy?
[ "the colder ping pong ball", "the hotter ping pong ball" ]
1
Two ping pong balls are identical except for their temperatures.
closed choice
grade5
natural science
physics
Heat and thermal energy
How are temperature and mass related to thermal energy?
The two ping pong balls are made of the same material and have the same mass. So, the hotter ping pong ball has more thermal energy.
Which word does not rhyme?
[ "dive", "five", "dime" ]
2
closed choice
grade2
language science
phonological-awareness
Rhyming
Which word does not rhyme?
Rhyming words are words that end with the same sound. The words tip and slip rhyme. They both end with the same sound. The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings. The words tip and meet don't rhyme. They end with different sounds.
The words five and dive rhyme. They both end with the ive sound. The word dime does not rhyme. It ends with a different sound.
Based on this information, what is Pacha's phenotype for the fur length trait?
[ "long fur", "short fur" ]
0
In a group of cats, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for short fur (F) is dominant over the allele for long fur (f). Pacha is a cat from this group. Pacha has the homozygous genotype ff for the fur length gene.
closed choice
grade7
natural science
biology
Genes to traits
Genetics vocabulary: dominant and recessive
All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different alleles, or forms, that can cause different versions of a trait. For example, flower color is a trait in pea plants. The gene for this trait has two possible alleles. Each allele is represented by an uppercase or lowercase letter. The allele F is for purple flowers, and the allele f is for white flowers. Each pea plant has two alleles for the flower color gene—one allele inherited from each parent. An organism's genotype for a gene is its combination of alleles for that gene. So, a pea plant may have a genotype of FF, Ff, or ff for the flower color gene. An organism's phenotype for a trait is its observable version of that trait, which depends on the organism's combination of alleles. A pea plant may have a phenotype of purple flowers or white flowers for the flower color trait. Some traits, like flower color in pea plants, are controlled by a single gene. Most plants and animals have a genotype made up of two alleles for these traits. These two alleles determine whether an organism is homozygous or heterozygous for the gene. An organism with two identical alleles for a gene is homozygous for that gene. A pea plant with the genotype FF or ff is homozygous for the flower color gene. An organism with two different alleles for a gene is heterozygous for that gene. A pea plant with the genotype Ff is heterozygous for the flower color gene. The types of alleles in an organism's genotype determine the organism's phenotype. Some alleles have types called dominant and recessive. These two types can cause different versions of a trait to appear as the organism's phenotype. A dominant allele causes its version of the trait to appear even when the organism also has a recessive allele for the gene. In pea plants, the F allele, which causes purple flowers, is dominant over the f allele. A pea plant with at least one F allele will have the F allele's version of the flower color trait. So, a plant with the genotype FF or Ff will have purple flowers. A recessive allele causes its version of the trait to appear only when the organism does not have any dominant alleles for the gene. In pea plants, the f allele, which causes white flowers, is recessive to the F allele. A pea plant with only f alleles will have the f allele's version of the flower color trait. So, a plant with the genotype ff will have white flowers.
Pacha's genotype for the fur length gene is ff. Pacha's genotype of ff has only f alleles. The f allele is for long fur. So, Pacha's phenotype for the fur length trait must be long fur. To check this answer, consider whether Pacha's alleles are dominant or recessive. The allele for short fur (F) is dominant over the allele for long fur (f). This means F is a dominant allele, and f is a recessive allele. Pacha's genotype of ff has only recessive alleles. An organism with only recessive alleles for a gene will have the recessive allele's version of the trait. So, Pacha's phenotype for the fur length trait must be long fur.
Which sentence states a fact?
[ "African American explorer Matthew Henson was the bravest explorer of the 1909 North Pole expedition.", "In 1909, African American explorer Matthew Henson became one of the first people to reach the North Pole." ]
1
closed choice
grade12
language science
writing-strategies
Developing and supporting arguments
Distinguish facts from opinions
Statements of fact make claims that are based on research, observation, or experimentation. Facts can be proved with evidence. Napoleon Bonaparte was shorter than King Louis XVI. This statement is a fact. The statement can be verified by researching and comparing the height of each man. Statements of opinion make claims that are based on personal judgments or perspectives. Opinions can be supported by evidence, but they cannot be definitively proved. Napoleon Bonaparte was a better leader than King Louis XVI. This statement is an opinion. People can have different ideas about what makes someone a "better" leader, so the statement cannot be proved.
The second sentence states a fact. It can be verified by researching the life of Matthew Henson. In 1909, African American explorer Matthew Henson became one of the first people to reach the North Pole. The first sentence states an opinion. Bravest indicates a personal judgment. African American explorer Matthew Henson was the bravest explorer of the 1909 North Pole expedition.
Select the solid.
[ "milk", "water in a bathtub", "rubber duck" ]
2
closed choice
grade2
natural science
physics
States of matter
Identify solids and liquids
Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms. When matter is a solid, it has a shape of its own. Some solids can be bent or broken easily. Others are hard to bend or break. A glass cup is a solid. A sock is also a solid. When matter is a liquid, it takes the shape of its container. Think about pouring a liquid from a cup into a bottle. The shape of the liquid is different in the cup than in the bottle. But the liquid still takes up the same amount of space. Juice is a liquid. Honey is also a liquid.
Which logical fallacy is used in the text? Bert is not qualified to run the Environmental Club. Have you seen his sister's huge, horrifically inefficient car? The planet cries whenever she turns on the ignition.
[ "slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences", "false dichotomy: an argument that presents only two choices when more options exist", "guilt by association: a negative association intended to discredit someone or something" ]
2
closed choice
grade10
language science
writing-strategies
Developing and supporting arguments
Classify logical fallacies
A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions. A logical fallacy may present irrelevant information: Fallacy | Description ad hominem | an attack against the person making the argument, rather than the argument itself appeal to nature | an argument that assumes the natural choice is always the best choice bandwagon fallacy | an argument that assumes the popular choice is always the best choice circular reasoning | an argument that supports a claim with the claim itself guilt by association | an unfair negative association with another person or group that is intended to discredit someone or something A logical fallacy may misrepresent the issues at hand: Fallacy | Description false causation | the assumption that because two things happened together, one caused the other false dichotomy | an argument that presents only two choices when more options exist hasty generalization | a broad claim based on too few observations slippery slope fallacy | the false assumption that a small first step will necessarily lead to extreme consequences straw man | a misrepresentation of an opponent's position that makes it easier to argue against
The text argues that Bert isn't qualified to run the Environmental Club because his sister drives a fuel inefficient car. However, the behavior of Bert's sister does not necessarily reflect Bert's own behavior. This illustrates a type of logical fallacy known as guilt by association.
Which text uses the word factoid in its traditional sense?
[ "As a geneticist, Dakota enjoys watching science documentaries and sharing various factoids she's learned with her colleagues.", "As a geneticist, Dakota dislikes many popular sci-fi movies because they often present audiences with factoids that misrepresent her field." ]
1
closed choice
grade9
language science
writing-strategies
Word usage and nuance
Explore words with new or contested usages
Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner. When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be more commonly used, many people consider a word's traditional definition to be the correct usage. Being able to distinguish the different uses of a word can help you use it appropriately for different audiences. Britney perused her notes, carefully preparing for her exam. The traditional usage above is considered more standard. David perused the magazine, absentmindedly flipping through the pages. The nontraditional usage above is now commonly used, but traditional style guides generally advise against it.
The first text uses factoid in its traditional sense: something made up presented as a true fact. As a geneticist, Dakota dislikes many popular sci-fi movies because they often present audiences with factoids that misrepresent her field. The second text uses factoid in its nontraditional sense: a trivial but true fact. As a geneticist, Dakota enjoys watching science documentaries and sharing various factoids she's learned with her colleagues. Most style guides recommend to use the traditional sense of the word factoid because it is considered more standard.
Compare the motion of three motorboats. Which motorboat was moving at the lowest speed?
[ "a motorboat that moved 340kilometers north in 5hours", "a motorboat that moved 115kilometers east in 5hours", "a motorboat that moved 280kilometers north in 5hours" ]
1
closed choice
grade3
natural science
physics
Force and motion
Compare the speeds of moving objects
An object's speed tells you how fast the object is moving. Speed depends on both distance and time. Distance tells you how far the object has moved. One unit used to measure distance is the kilometer. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about objects moving for the same amount of time. The object that is moving the slowest will go the shortest distance in that time. It is moving at the lowest speed.
Look at the distance each motorboat moved and the time it took to move that distance. The direction each motorboat moved does not affect its speed. Notice that each motorboat moved for 5 hours. The motorboat that moved 115 kilometers moved the shortest distance in that time. So, that motorboat must have moved at the lowest speed.
The Fourth Amendment protects people against "unreasonable searches." Which is an example of the type of "unreasonable search" this amendment protects against?
[ "A teacher asks a student to answer a hard question in front of the class.", "A parent spends several hours trying to find a lost set of car keys.", "A police officer looks through a student's backpack for no reason." ]
2
closed choice
grade4
social science
civics
Government
The Bill of Rights
The Fourth Amendment says that "unreasonable searches" are not allowed. It is not always clear what makes a search "unreasonable." But a search for no reason is definitely unreasonable! For example, a police officer cannot look through a student's backpack for no reason. The police officer has to have some sort of reason. Police officers and other government employees search people every day. There are many good reasons the government might have to search someone. For example, the person might be acting in a suspicious or strange way. Or a police officer might see something against the law before the search. It is often hard to know if the government has a good enough reason to do a search. Often a judge will have to decide. The full text of the Fourth Amendment is below. How can a police officer or other member of the government get the right to search someone? The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Which is a simple sentence?
[ "Letters and packages were sent to the mail room from a chute on the fourth floor.", "Although I would rather visit Italy, I'm excited about going to Panama this summer." ]
0
closed choice
grade5
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple, compound, or complex?
A clause is a group of words that contains both a subject and a predicate. An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence. the oranges on our tree are ripe The clause can stand alone. It is independent. after we pick up Kevin from work The clause cannot stand alone. It is dependent. A simple sentence is made up of a single independent clause. Ben and I spent all day relaxing by the pool. Some simple sentences have introductory phrases, but the introductory phrase is part of the predicate. In the winter, Ben usually wears his heavy coat. Ben usually wears his heavy coat in the winter. A compound sentence is made up of two independent clauses joined by a coordinating conjunction such as and, but, or, or so. We saw a flash of lightning, and seconds later we heard the rumble of thunder. A complex sentence is made up of an independent clause and a dependent clause. The dependent clause usually begins with a subordinating conjunction such as after, although, as, because, before, if, since, unless, until, when, or while. If she ever gets the chance, Terri would love to visit the Egyptian pyramids.
The first sentence is the simple sentence. It is a single independent clause. Letters and packages were sent to the mail room from a chute on the fourth floor.
Which figure of speech is used in this text? In the overmastering loneliness of that moment, his whole life seemed to him nothing but vanity. —Robert Penn Warren, Night Rider
[ "assonance", "antithesis" ]
0
closed choice
grade11
language science
figurative-language
Literary devices
Classify the figure of speech: review
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses. We are united. We are powerful. We are winners. Antithesis involves contrasting opposing ideas within a parallel grammatical structure. I want to help, not to hurt. Apostrophe is a direct address to an absent person or a nonhuman entity. Oh, little bird, what makes you sing so beautifully? Assonance is the repetition of a vowel sound in a series of nearby words. Try to light the fire. Chiasmus is an expression in which the second half parallels the first but reverses the order of words. Never let a fool kiss you or a kiss fool you. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected. Understatement involves deliberately representing something as less serious or important than it really is. As you know, it can get a little cold in the Antarctic.
The text uses assonance, the repetition of a vowel sound in a series of nearby words. The words overmastering, loneliness, moment, and whole share a vowel sound.
What kind of sentence is this? Lucy is completely soaked!
[ "declarative", "exclamatory" ]
1
closed choice
grade4
language science
punctuation
Sentences, fragments, and run-ons
Is the sentence declarative, interrogative, imperative, or exclamatory?
There are four kinds of sentences. A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period. I have an older brother and a younger sister. An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark. How tall are you? An imperative sentence is a command. It makes a request or tells someone to do something. An imperative sentence usually ends with a period. If the command shows strong feeling, it ends with an exclamation point. Read the first chapter by next week. Look out for that car! An exclamatory sentence is like a statement, but it shows surprise or strong feeling. An exclamatory sentence always ends with an exclamation point. Some whales are over ninety feet long! I can't wait until tomorrow!
The sentence tells about something, but it shows surprise and ends with an exclamation point. It is an exclamatory sentence.
What do these two changes have in common? molding clay into the shape of a pot breaking a stick in half
[ "Both are caused by heating.", "Both are chemical changes.", "Both are caused by cooling.", "Both are only physical changes." ]
3
closed choice
grade3
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change caused by heating. When paper gets hot enough, it re­acts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. A change of state is a type of physical change. Changes of state can be caused by heating or cooling. For example, ice melting is a physical change that can be caused by heating. Ice and liquid water are made of the same type of matter: water. The law of conservation of mass says that all physical and chemical changes conserve mass. Conserve means to keep the same. So, the total mass before a physical or chemical change is equal to the total mass after the change.
Step 1: Think about each change. Molding clay into the shape of a pot is a physical change. The clay gets a different shape. But it is made of the same type of matter. Breaking a stick in half is a physical change. The stick gets broken into two pieces. But the pieces are still made of the same type of matter as the original stick. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
Complete the statement. Assume that Bobby's mass did not change. The gravitational potential energy stored between Bobby and Earth () as he rode the escalator.
[ "decreased", "stayed the same", "increased" ]
2
Read the text about a person in motion. Bobby rode an escalator from the first floor to the second floor of a shopping mall.
closed choice
grade6
natural science
physics
Kinetic and potential energy
Identify changes in gravitational potential energy
Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth. The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitational potential energy also depends on the distance between the object and the center of Earth. This distance increases when the object moves higher and decreases when the object moves lower. If the distance between an object and the center of Earth changes, the gravitational potential energy stored between the object and Earth will change. The table below shows how this change can happen. When an object's mass stays the same and its distance from the center of Earth... | Gravitational potential energy stored between the object and Earth... increases | increases decreases | decreases stays the same | stays the same
Think about how the distance between Bobby and the center of Earth changed. The second floor is higher than the first floor. As he rode the escalator toward the second floor, the distance between Bobby and the center of Earth increased. So, the gravitational potential energy stored between Bobby and Earth increased as he rode the escalator.
Which figure of speech is used in this text? My sister always wears at least five pieces of jewelry, but I prefer to follow the guideline "Less is more."
[ "paradox", "euphemism" ]
0
closed choice
grade12
language science
figurative-language
Literary devices
Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses a paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth. Less is more at first appears to be contradictory, since less and more are opposites. However, it contains some truth: by removing something or scaling back, you can sometimes achieve a more complete or pleasing outcome.
How long does it take to do ten jumping jacks?
[ "28 seconds", "28 hours" ]
0
Select the better estimate.
closed choice
grade2
natural science
units-and-measurement
Units and measurement
Choose units of time
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds? The number 7 on its own does not give you much information about when the bus is leaving. That is because the units are missing. Time is usually measured in units of seconds, minutes, or hours. It takes about 1 second to sneeze and 1 minute to get dressed in the morning. It takes about 1 hour to bake a pie in the oven. There are 60 seconds in 1 minute. So, 1 second is much less than 1 minute. There are 60 minutes in 1 hour. So, 1 minute is much less than 1 hour.
The better estimate for how long it takes to do ten jumping jacks is 28 seconds. 28 hours is too slow.
What is the mass of a bicycle?
[ "24 tons", "24 pounds", "24 ounces" ]
1
Select the best estimate.
closed choice
grade4
natural science
units-and-measurement
Units and measurement
Choose customary units of mass
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Mass is a measurement of how much matter something contains. There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or tons. There are 16 ounces in 1 pound and 2,000 pounds in 1 ton. So, 1 ounce is less than 1 pound and much less than 1 ton. A slice of bread has a mass of about 1 ounce, while a can of beans has a mass of about 1 pound. A small car has a mass of about 1 ton.
The best estimate for the mass of a bicycle is 24 pounds. 24 ounces is too light and 24 tons is too heavy.
Which word would you find on a dictionary page with the following guide words? fair - formal
[ "film", "freckle" ]
0
closed choice
grade8
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since film is between the guide words fair - formal, it would be found on that page.
Is this a run-on sentence? Helsinki, Finland, is developing a "mobility on demand" system in which individual can use their smartphones to order trips with various mass transit options, including buses, bicycles, and driverless cars.
[ "no", "yes" ]
0
yes or no
grade12
language science
writing-strategies
Sentences, fragments, and run-ons
Identify run-on sentences
A sentence is a group of words that expresses a complete thought. The band I'm in has been rehearsing daily because we have a concert in two weeks. A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma splice. The band I'm in has been rehearsing daily, we have a concert in two weeks. The band I'm in has been rehearsing daily we have a concert in two weeks. There are several ways to fix a run-on sentence: Use stronger punctuation, such as a period or a semicolon. The band I'm in has been rehearsing daily. We have a concert in two weeks. The band I'm in has been rehearsing daily; we have a concert in two weeks. Use a comma and a coordinating conjunction to create a compound sentence. Coordinating conjunctions include and, but, or, and so. The band I'm in has been rehearsing daily, and we have a concert in two weeks. Use a subordinating conjunction or a relative pronoun to create a complex sentence. Subordinating conjunctions include after, although, as, because, before, if, since, unless, until, when, and while. Relative pronouns include that, which, who, whom, and whose. The band I'm in has been rehearsing daily since we have a concert in two weeks.
This is not a run-on sentence. It is not formed from two sentences that have been run together without appropriate punctuation. Helsinki, Finland, is developing a "mobility on demand" system in which individuals can use their smartphones to order trips with various mass transit options, including buses, bicycles, and driverless cars.
What is the temperature of a cold glass of water?
[ "5°C", "5°F" ]
0
Select the better estimate.
closed choice
grade7
natural science
units-and-measurement
Units and measurement
Estimate temperatures
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units. 212°F | Water boils | 100°C 98.6°F | Body temperature | 37°C 68°F | Room temperature | 20°C 32°F | Water freezes | 0°C
The better estimate for the temperature of a cold glass of water is 5°C. 5°F is too cold.
Which word does not rhyme?
[ "lake", "shape", "tape" ]
0
closed choice
grade2
language science
phonological-awareness
Rhyming
Which word does not rhyme?
Rhyming words are words that end with the same sound. The words tip and slip rhyme. They both end with the same sound. The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings. The words tip and meet don't rhyme. They end with different sounds.
The words shape and tape rhyme. They both end with the ape sound. The word lake does not rhyme. It ends with a different sound.
What information supports the conclusion that Lily inherited this trait?
[ "Some people use a hair dryer to straighten their hair. But Lily and her brothers have naturally straight hair.", "Both of Lily's biological parents have naturally black hair.", "When she was younger, Lily wore ribbons in her naturally black hair." ]
1
Read the description of a trait. Lily has naturally black hair.
closed choice
grade8
natural science
biology
Genes to traits
Inherited and acquired traits: use evidence to support a statement
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits. Offspring receive their genes, and therefore gain their inherited traits, from their biological parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Parents do not pass acquired traits down to their offspring.
Does the sentence use a simile or a metaphor? On that winter morning, Elizabeth's hands were as cold as ice.
[ "metaphor", "simile" ]
1
closed choice
grade4
language science
figurative-language
Literary devices
Identify similes and metaphors
Similes and metaphors are figures of speech that compare two things that are not actually alike. A simile compares two things by saying that one is like the other. Similes often use the words like and as. My sister runs like a cheetah. The sister's running and a cheetah's running are compared using the word like. A cheetah is known for running fast, so the simile means that the sister also runs fast. The cat's fur was as dark as the night. The cat's fur and the night are compared using the word as. The night is dark, so the simile means that the cat's fur is also dark. A metaphor compares two things by saying that one of them is the other. Unlike similes, metaphors don't use the word like or as. The snow formed a blanket over the town. The snow and a blanket are compared without the word like or as. A blanket is a large piece of cloth that completely covers a bed. The metaphor makes the reader imagine that the snow becomes a blanket, covering the town completely. Using similes and metaphors in your writing can help you create an interesting picture for the reader.
On that winter morning, Elizabeth's hands were as cold as ice. The words hands and ice are compared using the word as. So, the sentence uses a simile.
Assume all other forces on Katy are balanced. Which statement describes the forces on Katy?
[ "The forces are balanced, so there is no net force on Katy.", "The forces are unbalanced, so there is a net force on Katy." ]
1
Katy is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Katy with a force of 600N. The seat of the cart is pushing up on Katy with a force of 1,200N.
closed choice
grade8
natural science
physics
Velocity, acceleration, and forces
Balanced and unbalanced forces
A force is a push or a pull that acts on an object. Every force has a direction and a magnitude, or strength. If two forces act on an object in opposite directions, the forces are called opposing forces. When opposing forces have the same magnitude, they are balanced. If all the forces on an object are balanced, there is no net force on the object. When opposing forces have different magnitudes, the forces are unbalanced. If any forces on an object are unbalanced, there is a net force on the object.
To determine if there is a net force on Katy, look at the forces: Earth's gravity is pulling Katy down with a force of 600 N. The seat of the cart is pushing Katy up with a force of 1,200 N. The forces are in opposite directions, and the forces have different magnitudes: 600 N and 1,200 N. This means that the forces are unbalanced, so there is a net force on Katy.
Which is the softest?
[ "metal trombone", "cotton shirt", "bone" ]
1
closed choice
grade4
natural science
physics
Materials
Compare properties of materials
Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials. A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy. For example, a shiny material reflects a lot of light. A fragile material breaks when you drop it.
Soft is a property. A soft material changes shape when pressed or squeezed. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the cotton shirt is the softest. If you squeeze cotton fabric, it will change shape.
Which figure of speech is used in this text? Although the author Norman Mailer is no longer with us, his writings live on. His Pulitzer Prize-winning book, The Executioner's Song, remains a classic example of his unique style of writing.
[ "euphemism", "hyperbole" ]
0
closed choice
grade9
language science
figurative-language
Literary devices
Classify figures of speech: euphemism, hyperbole, oxymoron, paradox
Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive. A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic. The head of Human Resources would never refer to firing people, only to laying them off. Hyperbole is an obvious exaggeration that is not meant to be taken literally. I ate so much that I think I might explode! An oxymoron is a joining of two seemingly contradictory terms. Some reviewers are calling this book a new classic. A paradox is a statement that might at first appear to be contradictory, but that may in fact contain some truth. Always expect the unexpected.
The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic. No longer with us is an indirect and more polite way of saying dead.
Which word would you find on a dictionary page with the following guide words? unhappy - urgent
[ "us", "upon" ]
1
closed choice
grade4
language science
reference-skills
Reference skills
Use guide words
Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.
Put the words in alphabetical order. Since upon is between the guide words unhappy - urgent, it would be found on that page.
Which word is not like the others?
[ "horn", "piano", "drum", "sound" ]
3
closed choice
grade2
language science
vocabulary
Categories
Which word is not like the others?
Some words are alike. They go together in a group. Red, blue, and green go together. They are colors. Mom, dad, grandma, and grandpa go together. They are people in a family.
Drum, piano, and horn go together. They are instruments. Sound is not an instrument, so it is not like the other words.
Is the following statement true or false? Animal cells have chloroplasts.
[ "true", "false" ]
1
true-or false
grade4
natural science
biology
Cells
Cell part functions: true or false
Animal cells have chloroplasts. This statement is false. Animal cells do not have chloroplasts. Chloroplasts help plant cells make their own food. This food is a type of sugar called glucose. Animal cells cannot make their own food.
Select the one animal that has all of the reptile traits listed above.
[ "Loggerhead sea turtles hatch from eggs with shells. They live in the water, but they lay their eggs on the land. Their scaly, waterproof skin and thick shell help protect them from predators.", "Goldfish hatch from eggs with no shells and have scaly skin. They are popular as pets in many countries today. They were first kept as pets by people in ancient China. Goldfish have fins and live underwater." ]
0
Reptiles are a group of animals with similar traits. The following traits can be used to identify reptiles: They have scaly, waterproof skin. They make eggs with shells. Observe the animals and read the descriptions.
closed choice
grade5
natural science
biology
Classification
Use evidence to classify mammals, birds, fish, reptiles, and amphibians
Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live. How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, scientists compare the animal's traits to other animals' traits. Scientists classify animals with similar traits into a group.
To decide if an animal is part of a group, look at the traits of the group. Reptiles have the following traits: They have scaly, waterproof skin. They make eggs with shells. Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits. A goldfish has the following traits: It has fins, not limbs. It makes eggs with no shells. A goldfish does not have all of the traits of a reptile. A goldfish is a fish. A sea turtle has the following traits: It has scaly, waterproof skin. It makes eggs with shells. A sea turtle has the traits of a reptile. A sea turtle is a reptile.
What information supports the conclusion that Tiana acquired this trait?
[ "Tiana can cook food over a fire.", "Tiana learned how to build a fire at summer camp." ]
1
Read the description of a trait. Tiana knows how to build a fire.
closed choice
grade4
natural science
biology
Traits and heredity
Inherited and acquired traits: use evidence to support a statement
Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment.
Which logical fallacy is used in the text? Did you hear? A bunch of Kamal's friends were at that protest that got out of hand. I had no idea that Kamal was such a troublemaker.
[ "guilt by association: a negative association intended to discredit someone or something", "circular reasoning: an argument that supports a claim with the claim itself", "false dichotomy: an argument that presents only two choices when more options exist" ]
0
closed choice
grade9
language science
writing-strategies
Developing and supporting arguments
Classify logical fallacies
A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions. A logical fallacy may present irrelevant information: Fallacy | Description ad hominem | an attack against the person making the argument, rather than the argument itself appeal to nature | an argument that assumes the natural choice is always the best choice bandwagon fallacy | an argument that assumes the popular choice is always the best choice circular reasoning | an argument that supports a claim with the claim itself guilt by association | an unfair negative association with another person or group that is intended to discredit someone or something A logical fallacy may misrepresent the issues at hand: Fallacy | Description false causation | the assumption that because two things happened together, one caused the other false dichotomy | an argument that presents only two choices when more options exist hasty generalization | a broad claim based on too few observations slippery slope fallacy | the false assumption that a small first step will necessarily lead to extreme consequences straw man | a misrepresentation of an opponent's position that makes it easier to argue against
The text argues that Kamal must be a troublemaker because his friends were at an unruly protest. However, the behavior of Kamal's friends doesn't necessarily determine his own behavior. This illustrates a type of logical fallacy known as guilt by association.
What is the temperature of a cold glass of water?
[ "2°F", "2°C" ]
1
Select the better estimate.
closed choice
grade7
natural science
units-and-measurement
Units and measurement
Estimate temperatures
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units. 212°F | Water boils | 100°C 98.6°F | Body temperature | 37°C 68°F | Room temperature | 20°C 32°F | Water freezes | 0°C
The better estimate for the temperature of a cold glass of water is 2°C. 2°F is too cold.
What do these two changes have in common? bending a paper clip butter melting on a hot day
[ "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling.", "Both are chemical changes." ]
0
closed choice
grade3
natural science
chemistry
Physical and chemical change
Compare physical and chemical changes
Chemical changes and physical changes are two common ways matter can change. In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different. Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change caused by heating. When paper gets hot enough, it re­acts with oxygen in the air and burns. The paper and oxygen change into ash and smoke. In a physical change, the type of matter stays the same. The types of matter before and after a physical change are always the same. A change of state is a type of physical change. Changes of state can be caused by heating or cooling. For example, ice melting is a physical change that can be caused by heating. Ice and liquid water are made of the same type of matter: water. The law of conservation of mass says that all physical and chemical changes conserve mass. Conserve means to keep the same. So, the total mass before a physical or chemical change is equal to the total mass after the change.
Step 1: Think about each change. Bending a paper clip is a physical change. After you bend it, the paper clip has a different shape. But it is still made of the same type of matter. Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but it is still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Butter melting on a hot day is caused by heating. But bending a paper clip is not. Both are caused by cooling. Neither change is caused by cooling.