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Which logical fallacy is used in the text? I'm not surprised, frankly, that someone who gets lost in his own neighborhood would argue that New York has better pizza than Chicago.
[ "ad hominem: a personal attack against one's opponent", "circular reasoning: an argument that supports a claim with the claim itself" ]
0
closed choice
grade8
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 fal...
The text argues that people who like New York pizza are likely to have a poor sense of direction. This is a personal attack that isn't relevant to which type of pizza is better. This illustrates a type of logical fallacy known as ad hominem.
What information supports the conclusion that Quincy acquired this trait?
[ "Quincy's brother has scars on both of his knees.", "Quincy's scar is on his left knee. His mother also has a scar on her left knee.", "Quincy's scar was caused by an accident. He cut his leg when he fell off his skateboard." ]
2
Read the description of a trait. Quincy has a scar on his left knee.
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....
Is the following trait inherited or acquired? Sue has five fingers on each hand.
[ "acquired", "inherited" ]
1
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 lif...
Most humans are born with five fingers on each hand. So, having five fingers is an inherited trait.
What information supports the conclusion that Jon inherited this trait?
[ "Jon's parents have blond hair. They passed down this trait to Jon.", "Jon's mother cuts his hair every month." ]
0
Read the description of a trait. Jon has blond 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 lif...
What information supports the conclusion that Regan inherited this trait?
[ "Regan's father has brown eyes. He passed this trait down to Regan.", "Regan's hair is the same color as her brown eyes." ]
0
Read the description of a trait. Regan has brown eyes.
closed choice
grade6
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....
Which text uses the word nauseous in its traditional sense?
[ "Everyone seemed to enjoy the magnolia-scented candle, but Luke found the smell rather nauseous.", "Everyone seemed to enjoy the magnolia-scented candle, but it made Luke feel rather nauseous." ]
0
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...
The second text uses nauseous in its traditional sense: causing disgust or nausea. Everyone seemed to enjoy the magnolia-scented candle, but Luke found the smell rather nauseous. The first text uses nauseous in its nontraditional sense: feeling disgusted or nauseated. Everyone seemed to enjoy the magnolia-scented candl...
Which is a compound sentence?
[ "Mrs. Wagner plants flower seeds, and they blossom in the spring.", "Fresh English peas are delicious with butter and salt." ]
0
closed choice
grade3
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple or compound?
A simple sentence is a sentence with only one subject and predicate. The pitcher threw the ball to first base. A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so. The pitcher threw the ball, and the batter hit it. Some simple sentences have a compound subject or ...
The second sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction and. Mrs. Wagner plants flower seeds, and they blossom in the spring.
Which correctly shows the title of a play?
[ "all in the Stars", "All in the Stars" ]
1
closed choice
grade4
language science
capitalization
Formatting
Capitalizing titles
In a title, capitalize the first word, the last word, and every important word in between. The Wind in the Willows James and the Giant Peach These words are not important in titles: Articles, a, an, the Short prepositions, such as at, by, for, in, of, on, to, up Coordinating conjunctions, such as and, but, or
Capitalize the first word, the last word, and every important word in between. The words in and the are not important, so they should not be capitalized. The correct title is All in the Stars.
Which of the following contains a vague pronoun reference?
[ "Emma placed the walnuts in a wooden bowl after she separated them from the shells.", "After Emma separated the walnuts from the shells, she placed them in a wooden bowl." ]
1
closed choice
grade6
language science
pronouns
Pronouns and antecedents
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. Vagu...
The second answer choice contains a vague pronoun reference. The pronoun them could refer to the walnuts or the shells. After Emma separated the walnuts from the shells, she placed them in a wooden bowl. The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so ...
Choose the poem that has a regular rhythm, or a pattern of sound like a beat.
[ "To the dust cave—\nhe loves dust, he hoards it,\ngathers it in mountains,\nblows it into clouds,\nblue clouds, green clouds, yellow clouds, gold—", "How does the little crocodile\nImprove his shining tail,\nAnd pour the waters of the Nile\nOn every golden scale!" ]
1
From Lewis Carroll, "The Crocodile" and from Alfred Kreymborg, "Chains"
closed choice
grade4
language science
reading-comprehension
Poetry elements
Identify elements of poetry
Poetry is a special kind of writing. It has many elements that make it different from ordinary writing. Knowing these elements can help you talk about poetry, understand it better, and enjoy it more. A poem rhymes when it has a pattern of words that end in the same sound. End rhyme is when the rhymes appear at the end ...
This poem has a regular rhythm, or a pattern of sound like a beat. The parts in bold show the strong syllables. The pattern is a weak syllable followed by a strong syllable. It sounds like da-DUM da-DUM. On every golden scale!
What does the metaphor in this text suggest? When Malik lost his job, he was devastated. The only light in the sea of darkness was the prospect of pursuing a new career.
[ "There was a benefit to Malik's job loss.", "Malik felt in the dark about what to do after losing his job." ]
0
closed choice
grade8
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. A metaphor compares two things that are not actually alike without using like or as. The snow formed a blanket over the town.
The text uses a metaphor, comparing two things that are not actually alike without using like or as. The metaphor the only light in the sea of darkness was the prospect of pursuing a new career suggests that there was a benefit to Malik's job loss. A light would be beneficial in helping someone escape a dark, difficult...
A recent news story said a healthy diet is the key to living longer. It said people should eat less meat and more vegetables. What will probably happen to the overall supply of vegetables over the next year?
[ "The supply will probably go down.", "The supply will probably go up." ]
1
closed choice
grade7
social science
economics
Supply and demand
Understand overall supply and demand
Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply. | Resources | Number of producers or suppliers | Expected change in demand Supply goe...
Most people want to live longer, healthier lives. The news story said that it is healthier to eat less meat and more vegetables. So, there is an expected change in demand for vegetables. Producers will want to sell as many vegetables as they can. So, the supply of vegetables will probably go up.
What do these two changes have in common? melting glass dry ice sublimating and becoming a gas
[ "Both are chemical changes.", "Both are caused by cooling.", "Both are caused by heating." ]
2
closed choice
grade8
natural science
chemistry
Chemical reactions
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 different molecules. The types of molecules in matter bef...
Step 1: Think about each change. Melting glass is a change of state. So, it is a physical change. The glass changes from solid to liquid. But a different type of matter is not formed. Dry ice is solid carbon dioxide. When dry ice gets warm, it changes state and becomes carbon dioxide gas. This change of state, from sol...
Using only these supplies, which question can Kenneth investigate with an experiment?
[ "Does a small cloth towel or a large cloth towel dry faster when hung in the backyard?", "When hung in the laundry room, do black cloth towels or white cloth towels dry more quickly?", "Do cloth towels dry faster if they are hung in the laundry room or in the backyard?" ]
2
After Kenneth cleans up a spill, he hangs a wet cloth towel in the laundry room. Two hours later, he notices that the towel has partially dried. He wonders what factors affect how cloth dries. So, he decides to design an experiment. He has the following supplies available: two identical white cloth towels water a cloth...
closed choice
grade7
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
Which tense does the sentence use? Sam and Annie will swim in the warm pool.
[ "future tense", "past tense", "present 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. Mo...
The sentence is in future tense. You can tell because it uses will before the main verb, swim. The verb tells you about something that is going to happen.
What kind of sentence is this? Would you like bacon with your eggs?
[ "imperative", "interrogative" ]
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 ...
The sentence asks something, and it ends with a question mark. It is an interrogative sentence.
Which object has the least thermal energy?
[ "a watermelon at a temperature of 10°C", "a watermelon at a temperature of 17°C", "a watermelon at a temperature of 29°C" ]
0
The objects are identical except for their temperatures.
closed choice
grade4
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 slow down, the temperature goes down. The matter now has both ...
All three watermelons have the same mass but different temperatures. Since the 10°C watermelon is the coldest, it has the least thermal energy.
What do these two changes have in common? an old sandwich rotting in a trashcan a piece of apple turning brown
[ "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling.", "Both are chemical changes." ]
3
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 c...
Step 1: Think about each change. A sandwich rotting is a chemical change. The matter in the sandwich breaks down and slowly turns into a different type of matter. A piece of apple turning brown is a chemical change. The apple reacts with oxygen in the air and turns into a different type of matter. If you scrape off the...
Would you find the word unite on a dictionary page with the following guide words? umbrella - usual
[ "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 let...
Put the words in alphabetical order. Since unite is between the guide words umbrella - usual, it would be found on that page.
Using only these supplies, which question can Amanda investigate with an experiment?
[ "Does a catapult with a longer arm launch a rubber ball farther than a catapult with a shorter arm?", "Does a heavier ball travel farther than a lighter ball when launched from a catapult?", "Does a rubber ball travel farther when launched from a metal catapult or from a wooden catapult?" ]
0
Amanda visits a museum about ancient Greece. She notices an exhibit with models of wooden catapults that were used to launch large rocks across battlefields. She wonders what factors affect how far a catapult can launch an object. So, she decides to design an experiment. She has the following supplies available: a wood...
closed choice
grade7
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
Using only these supplies, which question can Neil investigate with an experiment?
[ "Do toy cars go faster down the ramp made of wood or the ramp made of cardboard?", "Does a big toy car go down the wooden ramp faster than a small toy car?", "Do toy cars with plastic wheels go faster down the cardboard ramp than toy cars with metal wheels?" ]
0
Neil and his sister are building ramps to race their toy cars down. Neil notices that the cars go down some of the ramps faster than others. He wonders what factors affect the cars' speed. So, he decides to design an experiment. He has the following supplies available: two identical toy cars a wooden ramp three feet lo...
closed choice
grade7
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
What does the allusion in this text suggest? With the gutters clogged and water rising in the streets, Cara, who was watching the storm from her window, commented, "We're going to need an ark to get out of here."
[ "Cara wants to protect her possessions.", "Cara thinks the storm will cause major flooding." ]
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. 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.
The text uses an allusion, a brief reference to someone or something well known. The allusion to an ark suggests that Cara thinks the storm will cause major flooding. In the Bible, it rains for forty days and forty nights; Noah, his family, and animals of every species survive the great flood in an ark that he builds.
Suppose Hansen decides to plant the oak tree. Which result would be a cost?
[ "The oak tree will use up more space than the irises would have used up.", "Hansen will get to look at the oak tree. He thinks it will look more beautiful than the irises would have looked." ]
0
Hansen is deciding whether to plant irises or an oak tree in his backyard. He wants to make his backyard more beautiful. But he also wants to leave space for doing fun things.
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 wa...
This result is a cost. It involves giving up or spending something that Hansen wants or needs: The oak tree will use up more space than the irises would have used up.
What kind of sentence is this? Please cut up the watermelon.
[ "interrogative", "imperative" ]
1
closed choice
grade5
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 ...
The sentence makes a request, so it is an imperative sentence. Here, it ends with a period.
Which greeting is correct for a letter?
[ "Dear Dr. nelson,", "Dear Dr. Nelson," ]
1
closed choice
grade4
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...
The first greeting is correct: Its first word is capitalized, and it ends with a comma. Dr. Nelson is capitalized because it is a proper noun.
Which closing is correct for a letter?
[ "Your friend,\nZane", "Your Friend,\nZane" ]
0
closed choice
grade4
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...
The second closing is correct: Its first word is capitalized, and it ends with a comma.
What is the volume of a carton of orange juice?
[ "60 gallons", "60 cups", "60 fluid ounces" ]
2
Select the best estimate.
closed choice
grade5
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,...
The best estimate for the volume of a carton of orange juice is 60 fluid ounces. 60 cups and 60 gallons are both too much.
What do these two changes have in common? mixing chocolate syrup into milk water vapor condensing on a bathroom mirror
[ "Both are caused by heating.", "Both are only physical changes.", "Both are caused by cooling.", "Both are chemical changes." ]
1
closed choice
grade7
natural science
chemistry
Chemical reactions
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 different molecules. The types of molecules in matter bef...
Step 1: Think about each change. Mixing chocolate syrup into milk is a physical change. The chocolate syrup and milk make a mixture. Making a mixture does not form a different type of matter. Water vapor condensing on a bathroom mirror is a change of state. So, it is a physical change. The water changes state from gas ...
Which figure of speech is used in this text? Reality leaves a lot to the imagination. —attributed to John Lennon
[ "euphemism", "paradox" ]
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. Hyperb...
The text uses a paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth. Reality leaves a lot to the imagination at first appears to be contradictory, as reality and imagination are opposites. However, it contains some truth: what we see as real often employs our abi...
Which figure of speech is used in this text? I got hit in the head by a can of soda. Luckily it was a soft drink.
[ "pun", "onomatopoeia" ]
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 his...
The text uses a pun, a word or phrase that humorously suggests more than one meaning. Soft drink refers to a carbonated beverage such as a soda. It also suggests that the can is soft and thus doesn't cause too much pain.
Which is a compound sentence?
[ "The rumor will fade away in time, and you won't even remember it.", "In June, Colette and Brendan will graduate with honors from Hillsboro High School." ]
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. aft...
The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction and. The rumor will fade away in time, and you won't even remember it.
Complete the sentence. Water boiling on a stove is a ().
[ "chemical change", "physical change" ]
1
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 burn...
Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed.
Select the one substance that is not a rock.
[ "Conglomerate is not made by living things. It is not a pure substance.", "A computer processor is made in a factory. It is a solid.", "Marble is not made by living things. It is not a pure substance." ]
1
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. A computer processor is made in a factory. But all rocks are formed in nature. So, a computer processor is not a rock. Marble is a rock. Conglomerate is a rock.
Which letter opening is more formal?
[ "Dear Mr. Dorsey,", "Dear Ed," ]
0
closed choice
grade9
language science
writing-strategies
Audience, purpose, and tone
Which text is most formal?
Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions. Formal writing is...
The first letter opening is more formal. It uses the recipient's personal title and last name. The other opening uses the recipient's first name, suggesting a more familiar relationship.
Would you find the word fifty on a dictionary page with the following guide words? felt - foster
[ "yes", "no" ]
0
yes or no
grade7
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 let...
Put the words in alphabetical order. Since fifty is between the guide words felt - foster, it would be found on that page.
Which is a compound sentence?
[ "Mr. Chan sent the email yesterday, but no one received it.", "You can make a quill pen with a goose feather." ]
0
closed choice
grade4
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple or compound?
A simple sentence is a sentence with only one subject and predicate. The pitcher threw the ball to first base. A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so. The pitcher threw the ball, and the batter hit it. Some simple sentences have a compound subject or ...
The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction but. Mr. Chan sent the email yesterday, but no one received it.
Which text uses the word ironic in its traditional sense?
[ "Last winter, Ted took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, he just missed a few of his college friends, who had been in Florida the previous week.", "Last winter, Ted took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a rare snowsto...
1
closed choice
grade11
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...
The first text uses ironic in its traditional sense: contrary to what was intended, often in an amusing way. It's ironic because Ted tried to get away from the snow but found himself in a snowstorm regardless. Last winter, Ted took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a rare...
What is the source of the allusion in the sentence below? Much to our shock, Percy chose to turn the other cheek when Shelby insulted him in a meeting.
[ "the Bible", "a song" ]
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 C...
The source of the allusion turn the other cheek is the Bible. In the Bible, Jesus counsels his followers to resist retaliation. He says that if they are struck on the right cheek, they shouldn't lash out; instead, they should turn the other cheek toward their attacker. The allusion turn the other cheek means to respond...
Which figure of speech is used in this text? Bruce's '64 Impala groaned as he turned the ignition. Yet again he resolved to refurbish it over the summer.
[ "personification", "simile" ]
0
closed choice
grade6
language science
figurative-language
Literary devices
Classify 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. 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 his...
The text uses personification, giving human characteristics to nonhuman things. Bruce's '64 Impala groaned describes the car as if it were human.
Complete the statement. Graphite is ().
[ "a compound", "an elementary substance" ]
1
Graphite is used to make pencil lead. The chemical formula for graphite is C.
closed choice
grade5
natural science
chemistry
Atoms and molecules
Classify elementary substances and compounds using chemical formulas
Every substance around you is made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds. Every chemical element is represented by its own symbol. For s...
You can tell whether graphite is an elementary substance or a compound by counting the number of symbols in its chemical formula. A symbol contains either one capital letter or a capital letter followed by one or two lowercase letters. The chemical formula for graphite is C. This formula contains one symbol: C for carb...
Which text uses the word ironic in its traditional sense?
[ "Last winter, Pablo took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a rare snowstorm happened to hit Florida that week.", "Last winter, Pablo took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, he just missed a few of his college friends, w...
0
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...
The second text uses ironic in its traditional sense: contrary to what was intended, often in an amusing way. It's ironic because Pablo tried to get away from the snow but found himself in a snowstorm regardless. Last winter, Pablo took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a...
Compare the motion of three ducks. Which duck was moving at the highest speed?
[ "a duck that moved 375kilometers north in 5hours", "a duck that moved 495kilometers west in 5hours", "a duck that moved 315kilometers 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 mov...
Look at the distance each duck moved and the time it took to move that distance. The direction each duck moved does not affect its speed. Notice that each duck moved for 5 hours. The duck that moved 495 kilometers moved the farthest distance in that time. So, that duck must have moved at the highest speed.
Using only these supplies, which question can Emilia investigate with an experiment?
[ "Do the deer eat fewer leaves from bean plants sprayed with garlic spray than from unsprayed bean plants?", "Do the deer eat fewer leaves from bean plants sprayed with coffee spray than from unsprayed bean plants?", "Do the deer eat more leaves from tomato plants or from squash plants?" ]
0
Emilia has a garden that is sometimes visited by deer. She notices that the deer eat some plants in her garden more than others. She wonders what factors affect which plants the deer eat. So, she decides to design an experiment. She has the following supplies available: a garlic spray used to keep garden pests away fou...
closed choice
grade8
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
Is a rubber band a good or a service?
[ "a good", "a service" ]
0
closed choice
grade2
social science
economics
Economics
Goods and services
Everything you can buy is either a good or a service. A good is something you can touch or hold in your hands. For example, a hammer is a good. A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service.
To decide whether a rubber band is a good or a service, ask these questions: Is a rubber band something you can touch? Yes. Is a rubber band a job you might pay someone else to do? No. So, a rubber band is a good.
Which is a compound sentence?
[ "He showed the officers a hotel receipt and an airplane ticket as proof of his time in Buenos Aires.", "Lucy accidentally spilled her glass of juice, but luckily it didn't get on the white sofa." ]
1
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. aft...
The first sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction but. Lucy accidentally spilled her glass of juice, but luckily it didn't get on the white sofa.
Select the one substance that is not a mineral.
[ "Hematite is a pure substance. It is a solid.", "Pyrite is a solid. It is not made by living things.", "Burlap is not a pure substance. It is made by humans." ]
2
closed choice
grade4
natural science
earth-science
Rocks and minerals
Identify minerals using properties
Minerals are the building blocks of rocks. A rock can be made of one or more minerals. Minerals and rocks have the following properties: Property | Mineral | Rock It is a solid. | Yes | Yes It is formed in nature. | Yes | Yes It is not made by organisms. | Yes | Yes It is a pure substance. | Yes | No It has a fixed cry...
Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals. Pyrite is a mineral. Burlap is not a pure substance. But all minerals are pure substances. Burlap is made by humans. But minerals are not made by living things. So, burlap is not...
Which is a sentence fragment?
[ "Swims happily in the beautiful coral reef.", "The car needed gas, Dad went to the gas station." ]
0
closed choice
grade3
language science
writing-strategies
Sentences, fragments, and run-ons
Is it a complete sentence, a fragment, or a run-on?
A sentence is a group of words that forms a complete thought. It has both a subject and a verb. My friends walk along the path. A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb. Knows the answer. This is a sentence fragment. It is missing a subj...
Swims happily in the beautiful coral reef is a sentence fragment. It is missing a subject.
Is this a sentence fragment? Derailed by miscommunication and a lack of funding, Evan and Jon's new business venture.
[ "yes", "no" ]
0
yes or no
grade12
language science
writing-strategies
Sentences, fragments, and run-ons
Identify sentence fragments
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 sentence fragment is a group of words that does not express a complete thought. Rehearsing daily because we have a concert in two weeks. This fragment is missing a subjec...
This is a sentence fragment. It does not express a complete thought. Derailed by miscommunication and a lack of funding, Evan and Jon's new business venture. Here is one way to fix the sentence fragment: Evan and Jon's new business venture has been derailed by miscommunication and a lack of funding.
Which is a compound sentence?
[ "Tracy knew the answer to the question, so she raised her hand.", "The beavers gnaw on logs by the riverbank." ]
0
closed choice
grade3
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple or compound?
A simple sentence is a sentence with only one subject and predicate. The pitcher threw the ball to first base. A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so. The pitcher threw the ball, and the batter hit it. Some simple sentences have a compound subject or ...
The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so. Tracy knew the answer to the question, so she raised her hand.
Which tense does the sentence use? Mr. Coleman signed his name on the letter.
[ "present tense", "future tense", "past tense" ]
2
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. Mo...
The sentence is in past tense. You can tell because it uses a past-tense verb, signed. The verb ends in -ed and tells you about something that has already happened.
Which type of sentence is this? Leroy always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor.
[ "compound", "compound-complex", "complex", "simple" ]
0
closed choice
grade12
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 alon...
The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and. Leroy always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor.
What information supports the conclusion that Brittany acquired this trait?
[ "Brittany learned to identify insects by reading many books about insects.", "Brittany likes to look at butterflies and beetles." ]
0
Read the description of a trait. Brittany is good at identifying insects.
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 lif...
Is a skateboard a good or a service?
[ "a service", "a good" ]
1
closed choice
grade2
social science
economics
Economics
Goods and services
Everything you can buy is either a good or a service. A good is something you can touch or hold in your hands. For example, a hammer is a good. A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service.
To decide whether a skateboard is a good or a service, ask these questions: Is a skateboard something you can touch? Yes. Is a skateboard a job you might pay someone else to do? No. So, a skateboard is a good.
Which text uses the word random in its traditional sense?
[ "Judy made a random trip to the grocery store, though her kitchen was already stocked with a hodgepodge of food.", "At the grocery store, Judy hastily grabbed fruits and vegetables at random, filling her shopping cart with a hodgepodge of food." ]
1
closed choice
grade11
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...
The second text uses random in its traditional sense: made or occurring without a definite pattern. At the grocery store, Judy hastily grabbed fruits and vegetables at random, filling her shopping cart with a hodgepodge of food. The first text uses random in its nontraditional sense: odd or out of place. Judy made a ra...
Which is a run-on sentence?
[ "The little boy popped a big bubble.", "The cardboard box gets wet it falls apart." ]
1
closed choice
grade3
language science
writing-strategies
Sentences, fragments, and run-ons
Is it a complete sentence or a run-on?
A sentence is a group of words that forms a complete thought. It has both a subject and a verb. My friends walk along the path. A run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma. I knocked on the door it opened. It started raining, we ran inside. To fix a run-on ...
The cardboard box gets wet it falls apart is a run-on sentence. It has two sentences that are joined without end punctuation: The cardboard box gets wet and It falls apart.
Assume all other forces on Candice are balanced. Which statement describes the forces on Candice?
[ "The forces are balanced, so there is no net force on Candice.", "The forces are unbalanced, so there is a net force on Candice." ]
1
Candice is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Candice with a force of 600N. The seat of the cart is pushing up on Candice with a force of 1,200N.
closed choice
grade6
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 ...
To determine if there is a net force on Candice, look at the forces: Earth's gravity is pulling Candice down with a force of 600 N. The seat of the cart is pushing Candice 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 ...
Which sentence is more formal?
[ "A tropical cyclone is a strong circular storm that begins over warm oceans near the equator.", "A tropical cyclone is a real big storm that begins over warm oceans near the equator." ]
0
closed choice
grade5
language science
writing-strategies
Author's purpose and tone
Which sentence is more formal?
Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing: Type | Examples slang | cool, awesome idioms | knock your socks off conversational language | gonna, kinda, yeah abbreviated language | ASAP, FYI overly simple or imprecise lan...
The second sentence is less formal. You can tell because it uses conversational language (real big). The first sentence uses formal language in place of the conversational language, so it is more formal overall.
Would you find the word herd on a dictionary page with the following guide words? however - hue
[ "yes", "no" ]
1
yes or no
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 let...
Put the words in alphabetical order. Since herd is not between the guide words however - hue, it would not be found on that page.
Select the temperature shown by this thermometer.
[ "115°F", "80°F", "55°F" ]
1
closed choice
grade3
natural science
units-and-measurement
Weather and climate
Read a thermometer
A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °. Some thermometers measure temperature in degrees Fahrenheit (°F). Fahrenheit is one scale used to measure temperature. This is a tube thermometer. It has a tube filled with a red liquid. There is a Fa...
Find the top of the red liquid. Now look at the scale to the right. The top of the red liquid lines up with 80. So, the temperature is 80°F.
Compare the motion of three blue jays. Which blue jay was moving at the highest speed?
[ "a blue jay that moved 385kilometers south in 10hours", "a blue jay that moved 310kilometers south in 10hours", "a blue jay that moved 320kilometers north in 10hours" ]
0
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 mov...
Look at the distance each blue jay moved and the time it took to move that distance. The direction each blue jay moved does not affect its speed. Notice that each blue jay moved for 10 hours. The blue jay that moved 385 kilometers moved the farthest distance in that time. So, that blue jay must have moved at the highes...
Select the liquid.
[ "chalk", "water in a sink", "flower petals", "stuffed rabbit" ]
1
closed choice
grade3
natural science
physics
States of matter
Identify solids, liquids, and gases
Solid, liquid, and gas 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 definite volume and a definite shape. So, a solid has a size and shape of its own. Some solids can be easily folded, bent, or broken. A piece of paper is a...
A flower petal is a solid. A solid has a size and shape of its own. When a butterfly lands on a flower petal, the petal may bend. But the petal will still have its own shape. Chalk is a solid. You can easily break chalk into pieces. But each piece will still have a size and shape of its own. A stuffed rabbit is a solid...
Complete the sentence. Building a tower out of magnetic blocks is a ().
[ "chemical change", "physical 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 an...
Building a tower out of magnetic blocks is a physical change. The blocks stick to each other to form a tower. But the blocks are still made of the same type of matter as before.
Which is a compound sentence?
[ "Robert practiced pitching the ball, so he became even better.", "The jewels on your necklace sparkle in this light." ]
0
closed choice
grade3
language science
grammar
Sentences, fragments, and run-ons
Is the sentence simple or compound?
A simple sentence is a sentence with only one subject and predicate. The pitcher threw the ball to first base. A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so. The pitcher threw the ball, and the batter hit it. Some simple sentences have a compound subject or ...
The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so. Robert practiced pitching the ball, so he became even better.
What is the source of the allusion in the sentence below? For several years, Dora Maar was Pablo Picasso's muse.
[ "a fairy tale", "Greek mythology" ]
1
closed choice
grade9
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 C...
The source of the allusion muse is Greek mythology. In Greek mythology, the muses are nine sister goddesses who embody and inspire song, poetry, art, and science. The allusion muse means a source of artistic motivation.
The trucks begin to move at the same speed. Which truck needs a larger force to start moving?
[ "a mail truck carrying 450 pounds of mail", "a mail truck carrying 550 pounds of mail" ]
1
Two mail trucks are loaded with mail. The trucks are the same. But they are carrying different amounts of mail.
closed choice
grade2
natural science
physics
Force and motion
How do mass and force affect motion?
A force is a push or a pull. A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction. Forces can be different sizes. Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. Y...
Look for the mail truck that is heavier. A mail truck carrying 550 pounds of mail is heavier than a mail truck carrying 450 pounds of mail. So, the mail truck carrying 550 pounds needs a larger force to start moving at the same speed as the other mail truck.
Compare the motion of three cars. Which car was moving at the lowest speed?
[ "a car that moved 220miles south in 5hours", "a car that moved 195miles east in 5hours", "a car that moved 210miles east 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 mile. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about objects moving f...
Look at the distance each car moved and the time it took to move that distance. The direction each car moved does not affect its speed. Notice that each car moved for 5 hours. The car that moved 195 miles moved the shortest distance in that time. So, that car must have moved at the lowest speed.
Select the solid.
[ "water in a fishbowl", "coffee", "air inside a balloon", "crayons" ]
3
closed choice
grade3
natural science
physics
States of matter
Identify solids, liquids, and gases
Solid, liquid, and gas 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 definite volume and a definite shape. So, a solid has a size and shape of its own. Some solids can be easily folded, bent, or broken. A piece of paper is a...
The air inside a balloon is a gas. A gas expands to fill a space. The air inside a balloon expands to fill all the space in the balloon. If the balloon pops, the air will expand to fill a much larger space. Coffee is a liquid. A liquid takes the shape of any container it is in. If you pour coffee into a different conta...
Which figure of speech is used in this text? After spending weeks in New York City, Clara was a bit unnerved by the deafening silence of her small hometown.
[ "oxymoron", "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. Hyperb...
The text uses an oxymoron, a joining of two seemingly contradictory terms. Deafening silence is a contradiction, because deafening describes something extremely loud, and silence is the absence of sound.
Which figure of speech is used in this text? Maya gazed at the ancient pug that seemed to sleep all day and noted, "You're an energetic puppy!"
[ "verbal irony", "pun" ]
0
closed choice
grade7
language science
figurative-language
Literary devices
Classify 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. 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 his...
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.
Which type of sentence is this? Annie is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
[ "compound-complex", "complex", "simple", "compound" ]
0
closed choice
grade10
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 alon...
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. Annie is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years.
Would you find the word beginner on a dictionary page with the following guide words? bade - butterfly
[ "yes", "no" ]
0
yes or no
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 let...
Put the words in alphabetical order. Since beginner is between the guide words bade - butterfly, it would be found on that page.
Last year, 50,000 people lived in the city of Norwood. But since then, 8,000 people have moved away. What probably happened to the overall supply of houses for sale in Norwood?
[ "The supply probably went down.", "The supply probably went up." ]
1
closed choice
grade7
social science
economics
Supply and demand
Understand overall supply and demand
Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply. | Resources | Number of producers or suppliers | Expected change in demand Supply goe...
The population of Norwood fell by 8,000 people. Many of the people who have left are probably trying to sell their houses. Since more people are trying to sell their houses, the number of suppliers of houses for sale in Norwood has gone up. So, the supply of houses for sale probably went up, too.
What is the source of the allusion in the sentence below? After a long second half full of sound and fury, the soccer game concluded in a tie.
[ "Shakespeare", "French history" ]
0
closed choice
grade11
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 Gree...
The source of the allusion sound and fury is Shakespeare. In Shakespeare's Macbeth, when Macbeth learns that his wife has died, he laments in his grief that life is nothing more than a "meaningless tale told by an idiot, full of sound and fury." The allusion sound and fury means activity that amounts to nothing.
Which figure of speech is used in this text? Ronald remarked that the new book on anti-gravity was impossible to put down.
[ "pun", "alliteration" ]
0
closed choice
grade8
language science
figurative-language
Literary devices
Classify 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. 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 his...
The text uses a pun, a word or phrase that humorously suggests more than one meaning. Impossible to put down means that the book is so good that it is hard to stop reading. The phrase impossible to put down is also a joke about anti-gravity: if gravity pulls things down, perhaps anti-gravity does the opposite and makes...
Based on this information, what is this tomato plant's phenotype for the fruit texture trait?
[ "FF", "smooth fruit" ]
1
In a group of tomato plants, some individuals have smooth fruit and others have fuzzy fruit. In this group, the gene for the fruit texture trait has two alleles. The allele F is for smooth fruit, and the allele f is for fuzzy fruit. A certain tomato plant from this group has smooth fruit. This plant has two alleles for...
closed choice
grade6
natural science
biology
Genes to traits
Genetics vocabulary: genotype and phenotype
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 ...
An organism's phenotype for a trait is its observable version of that trait. The tomato plant's observable version of the fruit texture trait is smooth fruit. So, the plant's phenotype for the fruit texture trait is smooth fruit.
Select the plant.
[ "Sheep eat plants.", "Grape vines have wide flat leaves." ]
1
closed choice
grade2
natural science
biology
Classification
Identify plants and animals
Plants and animals are living things. Living things are called organisms. Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can. Animals also come in many shapes and sizes. Most animals can move around. A...
A grape vine is a plant. It has wide flat leaves. People first grew grapes for food over 8,000 years ago. A sheep is an animal. It eats plants. People raise sheep for their fur, meat, and milk.
Suppose Brendan decides to plant the magnolia tree. Which result would be a cost?
[ "The magnolia tree will use up more space than the lilies would have used up.", "Brendan will get to look at the magnolia tree. He thinks it will look more beautiful than the lilies would have looked." ]
0
Brendan is deciding whether to plant lilies or a magnolia tree in his backyard. He wants to make his backyard more beautiful. But he also wants to leave space for doing fun things.
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 wa...
This result is a cost. It involves giving up or spending something that Brendan wants or needs: The magnolia tree will use up more space than the lilies would have used up.
Which figure of speech is used in this text? When Melissa first joined the track team, she was afraid of jumping, but she got over that hurdle.
[ "pun", "allusion" ]
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 his...
The text uses a pun, a word or phrase that humorously suggests more than one meaning. Hurdle refers to an obstacle that one must overcome. It also refers to an object that a runner jumps over.
Which change better matches the sentence? Melted rock comes out of the ground.
[ "volcanic eruption", "erosion" ]
0
closed choice
grade2
natural science
earth-science
Earth events
Classify changes to Earth's surface
Complete the sentence so that it uses personification. The giant boulder () budge, no matter how hard we pushed.
[ "would not", "refused to" ]
1
closed choice
grade8
language science
writing-strategies
Creative techniques
Use personification
Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point. The trees danced in the wind. The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t...
Complete the sentence with the phrase refused to. It describes the boulder as if it were a stubborn person.
Complete the sentence so that it uses personification. Slowly, a renewed sense of dread () her mind.
[ "invaded", "filled" ]
0
closed choice
grade10
language science
writing-strategies
Creative techniques
Use personification
Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point. The trees danced in the wind. The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t...
Complete the sentence with the word invaded. It describes dread as if it were a person who is barging in or taking over.
Using only these supplies, which question can Ellen investigate with an experiment?
[ "When placed in the sun, does a glass jar wrapped in cotton heat up more than a glass jar wrapped in wool?", "When wrapped in a cotton shirt and placed in the sun, does a large jar or a small jar heat up more?", "When placed in the sun, does a glass jar wrapped in a black cotton shirt heat up more than a glass ...
2
Ellen is outside with her friend on a sunny day. Ellen is wearing a light-colored shirt, and she notices that she feels colder than her friend, who is wearing a dark shirt. She wonders what factors affect how fabric warms an object. So, she decides to design an experiment. She has the following supplies available: a bl...
closed choice
grade6
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
Is the following trait inherited or acquired? Martha can ride a bicycle.
[ "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 lif...
People are not born knowing how to ride a bicycle. Instead, many people learn how to ride. So, riding a bicycle is an acquired trait.
What information supports the conclusion that Grayson inherited this trait?
[ "Grayson and his siblings all have naturally straight hair.", "Grayson and his biological father have short hair.", "Grayson's biological mother often wears her naturally brown hair in a bun." ]
2
Read the description of a trait. Grayson has naturally brown hair.
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....
What is the source of the allusion in the sentence below? Alec's Falstaffian nature makes him stand out at a party.
[ "Shakespeare", "Greek mythology" ]
0
closed choice
grade10
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 C...
The source of the allusion Falstaffian is Shakespeare. Sir John Falstaff, a comical character in several of William Shakespeare's plays, is known for his cheerful sociability and sometimes off-color humor. The allusion Falstaffian means characterized by joviality and enjoyment of food and drink.
How long does it take to make a paper airplane?
[ "40 minutes", "40 seconds" ]
1
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...
The better estimate for how long it takes to make a paper airplane is 40 seconds. 40 minutes is too slow.
How long does it take to blow your nose?
[ "4 seconds", "4 hours" ]
0
Select the better estimate.
closed choice
grade3
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...
The better estimate for how long it takes to blow your nose is 4 seconds. 4 hours is too slow.
Select the vertebrate.
[ "rock lobster", "earthworm", "yellow jacket", "gray crowned crane" ]
3
Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates.
closed choice
grade5
natural science
biology
Classification
Identify vertebrates and invertebrates
Vertebrates and invertebrates are both groups of animals. A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange. An invertebrate does not have a backb...
A yellow jacket is an insect. Like other insects, a yellow jacket is an invertebrate. It does not have a backbone. It has an exoskeleton. A rock lobster is a crustacean. Like other crustaceans, a rock lobster is an invertebrate. It does not have a backbone. It has an exoskeleton. An earthworm is a worm. Like other worm...
Complete the statement. Ruthenium is ().
[ "a compound", "an elementary substance" ]
1
Ruthenium is a metal that is often used in the tips of fountain pens. The chemical formula for ruthenium is Ru.
closed choice
grade6
natural science
chemistry
Atoms and molecules
Classify elementary substances and compounds using chemical formulas
There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you. A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ...
You can tell whether ruthenium is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters. The chemical formula for ruthenium contains one atomic symbol: Ru...
Which type of sentence is this? An avid reader, Garrett attends weekly book club meetings, and he finishes several novels every month.
[ "compound", "compound-complex", "complex", "simple" ]
0
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 alon...
The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and. An avid reader, Garrett attends weekly book club meetings, and he finishes several novels every month.
What do these two changes have in common? butter melting on a hot day burning a marshmallow over a campfire
[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]
1
closed choice
grade8
natural science
chemistry
Chemical reactions
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 different molecules. The types of molecules in matter bef...
Step 1: Think about each change. 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. Burning a marshmallow is a chemical change. The heat from the fire causes the type of matter in the marshmallow to cha...
Which logical fallacy is used in the text? Don't try to tell me that you only watch educational programming, Wanda! I know for a fact that your sister only watches reality television.
[ "circular reasoning: an argument that supports a claim with the claim itself", "guilt by association: a negative association intended to discredit someone or something" ]
1
closed choice
grade6
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 fal...
The text argues that Wanda must watch reality television, because her sister watches reality television. However, even though Wanda's sister watches reality television, that doesn't necessarily mean that Wanda does, too. This illustrates a type of logical fallacy known as guilt by association.
Compare the motion of three bicycles. Which bicycle was moving at the highest speed?
[ "a bicycle that moved 75miles south in 10hours", "a bicycle that moved 145miles east in 10hours", "a bicycle that moved 95miles south in 10hours" ]
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 mile. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about objects moving f...
Look at the distance each bicycle moved and the time it took to move that distance. The direction each bicycle moved does not affect its speed. Notice that each bicycle moved for 10 hours. The bicycle that moved 145 miles moved the farthest distance in that time. So, that bicycle must have moved at the highest speed.
Which word would you find on a dictionary page with the following guide words? willow - wreath
[ "wedding", "wobble" ]
1
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 let...
Put the words in alphabetical order. Since wobble is between the guide words willow - wreath, it would be found on that page.
How long does it take to tie your shoes?
[ "24 hours", "24 seconds" ]
1
Select the better estimate.
closed choice
grade3
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...
The better estimate for how long it takes to tie your shoes is 24 seconds. 24 hours is too slow.
What information supports the conclusion that Linda acquired this trait?
[ "Linda learned how to build a fire at summer camp.", "Linda can cook food over a fire." ]
0
Read the description of a trait. Linda knows how to build a fire.
closed choice
grade6
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....
Which correctly shows the title of a play?
[ "\"The Robbers Break In\"", "***The Robbers Break In***" ]
1
closed choice
grade3
language science
punctuation
Formatting
Formatting titles
The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead. A Midsummer Night's Dream The title of a poem, song, or article should be in quotation marks. "You Are My Sunshine"
A play should be in italics. The correct title is **The Robbers Break In**.
Using only these supplies, which question can Candice investigate with an experiment?
[ "When placed in the sun, does a glass jar wrapped in cotton heat up more than a glass jar wrapped in wool?", "When placed in the sun, does a glass jar wrapped in a black cotton shirt heat up more than a glass jar wrapped in a white cotton shirt?", "When wrapped in a cotton shirt and placed in the sun, does a la...
1
Candice is outside with her friend on a sunny day. Candice is wearing a light-colored shirt, and she notices that she feels colder than her friend, who is wearing a dark shirt. She wonders what factors affect how fabric warms an object. So, she decides to design an experiment. She has the following supplies available: ...
closed choice
grade6
natural science
science-and-engineering-practices
Designing experiments
Identify questions that can be investigated with a set of materials
Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment. Imagine that you are wondering if plants gro...
Which tense does the sentence use? We blame the blizzard for the traffic.
[ "future tense", "present tense", "past tense" ]
1
closed choice
grade4
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. Mo...
The sentence is in present tense. You can tell because it uses a present-tense verb, blame. The verb tells you about something that is true or happening now.
What do these two changes have in common? boiling sugar to make caramel water boiling on a stove
[ "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling.", "Both are chemical changes." ]
1
closed choice
grade7
natural science
chemistry
Chemical reactions
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 different molecules. The types of molecules in matter bef...
Step 1: Think about each change. Boiling sugar to make caramel is a chemical change. The heat causes the sugar to change into a different type of matter. Unlike sugar, the new matter is brown and sticky. Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a d...