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What is the capital of Ohio? | [
"Cleveland",
"Jefferson City",
"Madison",
"Columbus"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Columbus is the capital of Ohio. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
Would you mind lending me your pencil? I tried using mine, but it's pointless. | [
"metaphor",
"pun"
] | 1 | 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.
It's pointless means that there is no purpose in doing something. It also means that the pencil won't work because it doesn't have a sharpened point. | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 0 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Marco can ride a bicycle. | [
"inherited",
"acquired"
] | 1 | Hint: Riding a bike well takes practice. | 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 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. |
Look at the models of molecules below. Select the elementary substance. | [
"chloroform",
"fluorine",
"propane"
] | 1 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | 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 ... | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
account - anxious | [
"alive",
"appear"
] | 0 | closed choice | 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 alive is between the guide words account - anxious, it would be found on that page. | |
Not supported with pagination yet | What information supports the conclusion that Danielle inherited this trait? | [
"Danielle's parents have red hair. They passed down this trait to Danielle.",
"Danielle and her mother both wear their hair in braids."
] | 0 | Read the description of a trait.
Danielle has red hair. | 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 lif... | |
What is the capital of Missouri? | [
"Austin",
"Los Angeles",
"Kansas City",
"Jefferson City"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Jefferson City is the capital of Missouri. | |||
Not supported with pagination yet | Does this passage describe the weather or the climate?
While at the park today, William noticed that the wind was coming from the southwest. | [
"climate",
"weather"
] | 1 | closed choice | grade5 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
While at the park today, William noticed that the wind was coming from the southwest.
This passage tells you about the wind direction at the park today. It describes the atmosphere at a certain place and time. So, this passage describes the weather. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Of course the city is perfectly safe. Look at me—I've been living here for years and I'm fine! | [
"hasty generalization: a very broad claim based on very little evidence",
"ad hominem: a personal attack against one's opponent"
] | 0 | 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 the city is not dangerous. However, even though the speaker has never been in danger in the city, that doesn't necessarily mean that everyone in the city is always safe. This illustrates a type of logical fallacy known as a hasty generalization. | |
What is the capital of Kansas? | [
"Wichita",
"Lansing",
"Kansas City",
"Topeka"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Topeka is the capital of Kansas. | |||
Not supported with pagination yet | Based on this information, what is Echo's phenotype for the coat color trait? | [
"LL",
"a black coat"
] | 1 | In a group of cows, some individuals have a black coat and others have a red coat. In this group, the gene for the coat color trait has two alleles. The allele L is for a black coat, and the allele l is for a red coat.
Echo, a cow from this group, has a black coat. Echo has two alleles for a black coat. | 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. Echo's observable version of the coat color trait is a black coat. So, Echo's phenotype for the coat color trait is a black coat. |
Based on the time line, who does Tybalt fight with first? | [
"Mercutio",
"Romeo"
] | 0 | This time line shows events from Romeo and Juliet by William Shakespeare. | closed choice | grade5 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | A time line shows the order of events by placing them along a line. This time line shows events from Romeo and Juliet by William Shakespeare.
Look at how the events are ordered on the time line. Events that happen earlier are shown to the left. Events that happen later are shown to the right. Tybalt fights with Mercuti... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magnitude of the magnetic force between them is greater.
There is a smaller distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is greater in Pair 2 than in Pair 1. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Forced to choose between Scylla and Charybdis, Zachary threw up his hands in dismay. | [
"Greek mythology",
"modern history"
] | 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 Gree... | The source of the allusion Scylla and Charybdis is Greek mythology.
In Greek mythology, Scylla and Charybdis were two sea monsters located on either side of a narrow strait in the Mediterranean Sea.
The allusion Scylla and Charybdis means a pair of distasteful alternatives. | |
Not supported with pagination yet | Select the living thing. | [
"walnut tree",
"teddy bear"
] | 0 | closed choice | grade3 | natural science | biology | Classification | Identify living and nonliving things | All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. Living things use this energy to grow and change. All living things grow and change during their lives.
All living things sense changes in the world around them. Living things might sense ... | A walnut tree is a living thing.
Walnut trees grow and respond to the world around them. They need food and water.
Walnut trees are plants. They make their own food using water, carbon dioxide, and energy from sunlight.
A teddy bear is not a living thing.
Teddy bears do not have all of the traits of living things. They... | |
Which property matches this object? | [
"slippery",
"sticky"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
A slippery object is hard to hold onto or stand on. The melted marshmallow is not slippery.
A sticky object can attach or stick to other things. The melted marshmallow is sticky. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Janice entered the bustling, aromatic spice market in Istanbul and said to her travel companion, "We're not in Kansas anymore." | [
"a movie",
"a fable"
] | 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 We're not in Kansas anymore is a movie.
In the 1939 film The Wizard of Oz, Dorothy, a young farm girl from Kansas, finds herself in Oz, an unusual place that looks nothing like her home. She says to her dog, "Toto, I've a feeling we're not in Kansas anymore."
The allusion We're not in Kansas ... | |
Which country is highlighted? | [
"Tonga",
"Kiribati",
"Palau",
"Tuvalu"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tuvalu. | |||
Not supported with pagination yet | What information supports the conclusion that Savannah inherited this trait? | [
"Savannah and her biological father wear sunglasses when they go outside.",
"Savannah has green eyes like her biological mother.",
"Savannah's neighbor has green eyes."
] | 1 | Read the description of a trait.
Savannah has green 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.... | |
Not supported with pagination yet | Which sentence states a fact? | [
"Kwanzaa celebrations last one week.",
"Kwanzaa is the most enjoyable holiday."
] | 0 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or fe... | The second sentence states a fact.
Kwanzaa celebrations last one week.
It can be proved by looking up the traditions of Kwanzaa.
The first sentence states an opinion.
Kwanzaa is the most enjoyable holiday.
Most enjoyable shows what a person believes, thinks, or feels. Another person might have a different opinion about... | |
Not supported with pagination yet | Which tense does the sentence use?
Samuel opens the big box. | [
"future tense",
"present tense",
"past tense"
] | 1 | 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 present tense. You can tell because it uses a present-tense verb, opens. The verb ends in -s and tells you about something that is true or happening now. | |
Not supported with pagination yet | Which announcement is more formal? | [
"The Silvergrove Law Firm is pleased to announce . . .",
"The Silvergrove Law Firm is so happy to tell you . . ."
] | 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 announcement is more formal. It uses more elevated language (pleased to announce). The other announcement sounds more conversational (so happy). | |
Not supported with pagination yet | Suppose Myra decides to take a trip to Minnesota. Which result would be a cost? | [
"Myra will enjoy her trip to Minnesota more than she would have enjoyed a trip to New Jersey.",
"Myra will spend more money. Plane tickets for Myra to get to Minnesota are more expensive than tickets to New Jersey."
] | 1 | Myra is deciding whether to take a trip to Minnesota or New Jersey. She wants to enjoy her trip. But she is also trying to save money. | closed choice | grade4 | 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 Myra wants or needs:
Myra will spend more money. Plane tickets for Myra to get to Minnesota are more expensive than tickets to New Jersey. |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Harold got off the mountain by the skin of his teeth. | [
"the Bible",
"U.S. history"
] | 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 C... | 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 ... | |
Not supported with pagination yet | Using only these supplies, which question can Nina investigate with an experiment? | [
"Does milk chocolate or dark chocolate melt faster when heated on the stove?",
"Does dark chocolate or white chocolate melt faster when heated on the stove?",
"Does milk chocolate melt faster when heated in a microwave or on a stove?"
] | 0 | Nina leaves some chocolates in her jacket pocket. When she finds the chocolates later, she notices that some of them have melted. She wonders what factors affect how quickly chocolate melts. So, she decides to design an experiment. She has the following supplies available:
one bar of milk chocolate
one bar of dark choc... | 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 solution has a higher concentration of yellow particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The package that had arrived on my doorstep seemed (). | [
"eager to be opened",
"mysterious"
] | 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 phrase eager to be opened. It describes the package as if it were an enthusiastic person. | |
Which term matches the picture? | [
"cocoon",
"chrysalis"
] | 1 | Read the text.
Butterflies and moths are easily mistaken for each other, but one distinction between them often appears during their pupal stage. When most butterfly caterpillars reach full size, they attach themselves to a leaf or other object and shed their skin a final time, forming a chrysalis, a hard, shell-like s... | closed choice | grade8 | language science | word-study | Domain-specific vocabulary | Determine the meaning of domain-specific words with pictures | A chrysalis is a hard, protective shell-like skin that forms around a butterfly pupa. It often hangs from a silk disk and blends into the environment around it. | ||
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is weaker in Pair 1.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Which of these continents does the equator intersect? | [
"Europe",
"North America",
"South America"
] | 2 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The equator is the line at 0° latitude. It intersects South America. It does not intersect North America or Europe. | ||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
When I learned the details of Helen's Faustian bargain, I was in disbelief. | [
"history",
"literature"
] | 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 Faustian bargain is literature.
In a play by Christopher Marlowe based on the legend of Faust, a man strikes a deal with the devil. Disregarding the long-term consequences of his actions, he sells his soul in exchange for power.
The allusion Faustian bargain means a compromise of one's values... | |
Not supported with pagination yet | What does the idiom in this text suggest?
In September 2013, President Obama stated that he was on the fence about ordering a military strike against Syria. | [
"The president was firmly against the military strike.",
"The president was undecided about the military strike."
] | 1 | closed choice | grade10 | 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 idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom on the fence suggests that the president was undecided about the military strike. If you are on the fence, you are on neither one side nor the other. In other words, you are torn or unsure. | |
What is the capital of Washington? | [
"Seattle",
"Olympia",
"Lincoln",
"Spokane"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Olympia is the capital of Washington. | |||
Not supported with pagination yet | Does this passage describe the weather or the climate?
Sophia noticed that the sky was filled with cumulus clouds every day last week. | [
"climate",
"weather"
] | 1 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Sophia noticed that the sky was filled with cumulus clouds every day last week.
This passage tells you about the clouds Sophia saw last week. It describes the atmosphere at a certain place and time. So, this passage describes the weather. |
Not supported with pagination yet | Which logical fallacy is used in the text?
That advice columnist argues that people should establish their careers before they get married. It really disappoints me that he would suggest to his readers that money is more important than love. | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"guilt by association: a negative association intended to discredit someone or something",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences"
] | 0 | closed choice | grade11 | 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 the columnist believes money is more important than love. However, this misrepresents the columnist's argument. The columnist only thinks that people should seek stable careers before getting married. This illustrates a type of logical fallacy known as a straw man. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"a wild animal",
"a savage animal"
] | 1 | 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 n... | A savage animal has a more negative connotation. A savage animal is a wild animal that is fierce and scary. | |
Which property do these three objects have in common? | [
"fragile",
"bouncy",
"bumpy"
] | 0 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A fragile object will break into pieces if you drop it. All three objects are fragile.
A bouncy object will bounce back from the floor if you drop it. None of the objects are bouncy.
A bumpy object is covered in lumps and bumps. The glass bottle and ... | |
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Hornblende is a pure substance. It is not made by living things.",
"Fluorite is a solid. It is formed in nature.",
"A turtle shell is made by a living thing. It is not a pure substance."
] | 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.
Fluorite is a mineral.
A turtle shell is made by a living thing. But minerals are not made by living things.
A turtle shell is not a pure substance. But all minerals are pure sub... | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average ... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Bryant dropped out of college to travel the world, but a year later, the prodigal son returned home and re-enrolled. | [
"the Bible",
"British history"
] | 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 C... | The source of the allusion prodigal son is the Bible.
In a Biblical parable, the prodigal son irresponsibly spends the inheritance given to him by his father. When he returns home, he expects to be shamed, but his father forgives him.
The allusion prodigal son means a person who behaves recklessly but later makes a rep... | |
Not supported with pagination yet | Based on this information, what is Moby's phenotype for the tail spots trait? | [
"an unspotted tail",
"ii"
] | 0 | In a group of guppies, some individuals have a spotted tail and others have an unspotted tail. In this group, the gene for the tail spots trait has two alleles. The allele I is for a spotted tail, and the allele i is for an unspotted tail.
Moby, a guppy from this group, has an unspotted tail. Moby has two alleles for a... | 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. Moby's observable version of the tail spots trait is an unspotted tail. So, Moby's phenotype for the tail spots trait is an unspotted tail. |
Select the chemical formula for this molecule. | [
"HI2",
"HI",
"HeI",
"He2I2"
] | 1 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Match chemical formulas to ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | H is the symbol for hydrogen. I is the symbol for iodine. This ball-and-stick model shows a molecule with one hydrogen atom and one iodine atom.
The chemical formula will contain the symbols H and I. There is one hydrogen atom, so H will not have a subscript. There is one iodine atom, so I will not have a subscript.
Th... | ||
Not supported with pagination yet | How long is a tennis racket? | [
"25 feet",
"25 yards",
"25 inches",
"25 miles"
] | 2 | Select the best estimate. | closed choice | grade6 | natural science | units-and-measurement | Units and measurement | Choose customary 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 customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a tennis racket is 25 inches.
25 feet, 25 yards, and 25 miles are all too long. |
Which of these states is farthest east? | [
"North Dakota",
"Colorado",
"California",
"Kentucky"
] | 3 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Kentucky is farthest east. | ||
Not supported with pagination yet | Using only these supplies, which question can Madelyn investigate with an experiment? | [
"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?",
"Does a catapult with a longer arm launch a rubber ball farther than a catapult with a shorter arm?"
] | 2 | Madelyn 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 woo... | 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... | |
Not supported with pagination yet | What kind of sentence is this?
Beth gave me flowers for no reason. | [
"interrogative",
"declarative"
] | 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 tells about something, and it ends with a period. It is a declarative sentence. | |
Look at the models of molecules below. Select the elementary substance. | [
"fluorine",
"benzene",
"dichloromethane"
] | 0 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | 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 ... | |||
Not supported with pagination yet | Would you find the word rob on a dictionary page with the following guide words?
reap - ruin | [
"yes",
"no"
] | 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 let... | Put the words in alphabetical order.
Since rob is between the guide words reap - ruin, it would be found on that page. | |
Which ocean is highlighted? | [
"the Indian Ocean",
"the Atlantic Ocean",
"the Arctic Ocean",
"the Southern Ocean"
] | 2 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Arctic Ocean. | ||
Not supported with pagination yet | Which fish tank has less thermal energy? | [
"the colder fish tank",
"the hotter fish tank"
] | 0 | Two fish tanks 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? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two fish tanks are made of the same material and have the same mass. So, the colder fish tank has less thermal energy. |
Not supported with pagination yet | Select the mixture. | [
"pasta salad",
"silver"
] | 0 | closed choice | grade2 | natural science | physics | Mixtures | Identify mixtures | A pure substance is made of only one type of matter.
A mixture is made of two or more types of matter mixed together. | ||
Not supported with pagination yet | Which sentence is more formal? | [
"The president said some surprising things in his speech.",
"In his speech, the president made several surprising statements."
] | 1 | closed choice | grade7 | 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 overly simple or imprecise language (said, things).
The first sentence uses more precise language, so it is more formal overall. | |
Not supported with pagination yet | Which organizational structure does this text primarily use? | [
"problem-solution",
"sequential"
] | 1 | Read the text.
Bicycles have evolved over many years. In 1818, a heavy two-wheeled device called a "velocipede" was patented in Paris. The rider controlled the direction with a steering wheel and moved it forward by pushing his feet on the ground. It caught on briefly, and many people worked to refine its design. In 18... | closed choice | grade8 | language science | writing-strategies | Text structure | Identify text structures | Authors use different text structures to organize their ideas in writing. Learning to identify these structures will help you to understand the relationships between ideas in informational texts. You can also use these structures to organize your own writing.
A cause-effect structure presents the causes and the effects... | The text uses a sequential structure to show the evolution of the bicycle. In the text, certain words and phrases help to organize ideas in a sequential structure. Notice the phrases in 1818, in 1863, a few years later, over the next decade, and in 1899. |
Not supported with pagination yet | Which figure of speech is used in this text?
The Livingston family is going to spend two weeks in Ocean City, but for Ethan it will be a working vacation, since he'll be checking in with the office every day. | [
"hyperbole",
"oxymoron"
] | 1 | 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.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Working vacation is a contradiction, because going on a vacation implies that you are taking a break from work. | |
Complete the sentence.
The word "antebellum" means (). | [
"before the feast",
"after the long peace",
"after the election",
"before the war"
] | 3 | The time period in United States history between 1820 and 1861 is often called the antebellum period. During the antebellum period, the North and South became more divided. In the following questions, you learn more about the changes that happened during the antebellum period.
The following table shows other words that... | closed choice | grade8 | social science | us-history | The Antebellum period | Causes of the Civil War: Missouri Compromise to Bleeding Kansas | Look at the underlined parts of the table.
All the words that use the root "ante" mean to come before something else. So, the root ante means "before."
All the words that use the root "bellum" mean to fight or cause war.So, the root bellum means "war."
So, the word "antebellum" means "before the war." The antebellum pe... | ||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
"Carly is such a Pollyanna!" Ruben announced with a sigh. | [
"a fable",
"literature"
] | 1 | 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 C... | The source of the allusion Pollyanna is literature.
The character Pollyanna, from Eleanor Porter's children's book, is a young girl who finds good in everything and everyone.
The allusion Pollyanna means an overly optimistic person. | |
Which of these states is farthest west? | [
"Maine",
"Connecticut",
"Illinois",
"Alabama"
] | 2 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Illinois is farthest west. | ||
Which term matches the picture? | [
"phloem",
"xylem"
] | 1 | Read the text.
The stem of a plant contains different types of tissue. Two of these types are xylem and phloem. Xylem tissue carries water and nutrients from the roots of the plant to the leaves. Xylem moves materials in only one direction, up the plant's stem. Phloem tissue carries nutrients from the leaves to other p... | closed choice | grade6 | language science | vocabulary | Context clues | Determine the meaning of domain-specific words with pictures | Xylem moves water and nutrients from the roots of plants to the leaves. The materials in xylem move in only one direction. | ||
Which property do these three objects have in common? | [
"rough",
"slippery",
"flexible"
] | 0 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A slippery object is hard to hold onto or stand on. The log and the velcro are not slippery.
A rough object feels scratchy when you touch it. All three objects are rough.
A flexible object can be folded or bent without breaking easily. The velcro is ... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Lee described the situation he was facing with his boss as a catch-22. | [
"literature",
"a song"
] | 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 Gree... | The source of the allusion catch-22 is literature.
Joseph Heller coined the term "catch-22" in his 1961 novel of the same name. In the novel, if an army pilot wants to avoid dangerous missions, he must be deemed mentally unfit; however, his desire to stay safe proves his sanity, so he can never be excused from a missio... | |
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
Reeves, Amy. "Biogen's MS Drug Sales Light, Alzheimer's Data Pushed Back." Investor's Business Daily 27 Apr. 2015: A1. Print. | [
"It is a poem.",
"It is a newspaper article.",
"It is a book."
] | 1 | closed choice | grade11 | language science | reference-skills | Research skills | Understand a Works Cited entry (MLA 7th edition) | When writing research papers, you will often be asked to follow a particular style guide for your citations. One popular style guide is the Modern Language Association (MLA) Handbook.
Below are the basic formats for some common types of Works Cited entries. Consult the MLA Handbook for a complete list.
Books:
Format | ... | Look closely at the Works Cited entry:
Reeves, Amy. "Biogen's MS Drug Sales Light, Alzheimer's Data Pushed Back." Investor's Business Daily 27 Apr. 2015: A1. Print.
You can tell that the cited work is a newspaper article because of the entry's formatting. Entries for newspaper articles include the author of the article... | |
Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium. | [
"to the right than to the left",
"to the left than to the right"
] | 1 | The diagram below shows a solution with one solute. Each solute particle is represented by a purple ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time... | closed choice | grade6 | natural science | chemistry | Solutions | Diffusion across membranes | In a solution, solute particles move and spread throughout the solvent. The diagram below shows how a solution can change over time. Solute particles move from the area where they are at a higher concentration to the area where they are at a lower concentration. This movement happens through the process of diffusion.
A... | Look at the diagram again. It shows you how the solution changed during the process of diffusion.
Before the solute particles reached equilibrium, there were 5 solute particles on the left side of the membrane and 7 solute particles on the right side of the membrane.
When the solute particles reached equilibrium, there... | |
Not supported with pagination yet | Using only these supplies, which question can Ellen investigate with an experiment? | [
"Will eight ounces of carbonated water or eight ounces of tap water get warmer when placed in a jar in the sun?",
"When placed in the sun, will eight ounces of water in a glass jar or eight ounces of water in a plastic cup get warmer?",
"When placed in the sun, will eight ounces of water in a closed jar or eigh... | 2 | Ellen leaves a glass jar of cold tea outside in full sunlight. When she goes to get it, she notices that the tea is warm. She wonders what factors affect how warm a liquid gets from sitting in the sunlight. So, she decides to design an experiment. She has the following supplies available:
two identical glass jars
two j... | 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... | |
Not supported with pagination yet | Using only these supplies, which question can Dominic investigate with an experiment? | [
"Do the squirrels eat walnuts from large feeders more often than from small feeders?",
"Do the squirrels select sunflower seeds or walnuts more often?",
"Which type of tree do the squirrels feed from most often?"
] | 1 | Dominic enjoys feeding the squirrels in his backyard. He notices that they spend a lot of time collecting seeds and nuts. He wonders about what factors affect which foods squirrels choose to collect. So, he decides to design an experiment. He has the following supplies available:
two identical squirrel feeders
a bag of... | 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... | |
Not supported with pagination yet | What kind of sentence is this?
Don't overlook Samantha when choosing the new principal. | [
"imperative",
"exclamatory",
"interrogative"
] | 0 | closed choice | grade8 | 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, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence makes a request, so it is an imperative sentence. Here, it ends with a period. | |
Not supported with pagination yet | Complete the sentence.
Cells using oxygen to break down sugar is a (). | [
"physical change",
"chemical change"
] | 1 | closed choice | grade4 | 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... | Cells using oxygen to break down sugar is a chemical change. When sugar is broken down, it forms carbon dioxide and water. | |
Not supported with pagination yet | What is the mass of a bicycle? | [
"18 tons",
"18 pounds",
"18 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 ton... | The best estimate for the mass of a bicycle is 18 pounds.
18 ounces is too light and 18 tons is too heavy. |
Which is this organism's scientific name? | [
"Acrochordus granulatus",
"marine file snake"
] | 0 | This organism is Acrochordus granulatus. It is also called a marine file snake. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Acrochordus granulatus is written in italics. The first word is capitalized, and the second word is not.
So, Acrochordus granulatus is the scientific name. | |
Not supported with pagination yet | Last year, 50,000 people lived in the city of Washington. But since then, 8,000 people have moved away. What probably happened to the overall supply of houses for sale in Washington? | [
"The supply probably went up.",
"The supply probably went down."
] | 0 | closed choice | grade5 | 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 Washington 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 Washington has gone up. So, the supply of houses for sale probably went up, too. | |
What is the name of the colony shown? | [
"New Hampshire",
"Massachusetts",
"Connecticut",
"Wisconsin"
] | 1 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Massachusetts.
The Massachusetts Colony included land that would later become the state of Maine. Maine was never its own colony. | |||
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"As a geneticist, Mabel enjoys watching science documentaries and sharing various factoids she's learned with her colleagues.",
"As a geneticist, Mabel dislikes many popular sci-fi movies because they often present audiences with factoids that misrepresent her field."
] | 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... | The first text uses factoid in its traditional sense: something made up presented as a true fact.
As a geneticist, Mabel 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.
... | |
Not supported with pagination yet | How long is a hammer? | [
"16 kilometers",
"16 centimeters"
] | 1 | Select the better estimate. | closed choice | grade2 | 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 informa... | The better estimate for the length of a hammer is 16 centimeters.
16 kilometers is too long. |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Love,\nConnor",
"love,\nConnor"
] | 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... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Is a slide a solid or a liquid? | [
"a solid",
"a liquid"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Classify matter as solid or liquid | 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 li... | A slide is a solid. A solid has a size and shape of its own.
A slide has a size and shape of its own, even when you sit on it. | ||
Not supported with pagination yet | Would you find the word porridge on a dictionary page with the following guide words?
panther - presume | [
"no",
"yes"
] | 1 | yes or no | 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 let... | Put the words in alphabetical order.
Since porridge is between the guide words panther - presume, it would be found on that page. | |
Not supported with pagination yet | Which word does not rhyme? | [
"take",
"same",
"cake"
] | 1 | 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 take and cake rhyme. They both end with the ake sound.
The word same does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | What is the mass of an adult hippopotamus? | [
"3 ounces",
"3 tons",
"3 pounds"
] | 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 ton... | The best estimate for the mass of an adult hippopotamus is 3 tons.
3 ounces and 3 pounds are both too light. |
Not supported with pagination yet | Select the elementary substance. | [
"bromomethane (CH3Br)",
"ammonia (NH3)",
"gold (Au)"
] | 2 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Identify 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... | Look at the chemical formula for each substance, and count the number of symbols in the formula. Then, decide if the substance is an elementary substance. The chemical formula for ammonia contains two symbols: N for nitrogen and H for hydrogen. So, ammonia is made of two chemical elements bonded together. Substances th... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Red velvet cupcakes were Alexandra's Achilles's heel when she was trying to eat more healthily. | [
"Greek mythology",
"the Bible"
] | 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 Achilles's heel is Greek mythology.
In Greek mythology, Achilles's mother dips him in a river that protects his body wherever it touches. His heel does not get wet, so it is the one part of his body left unprotected. During the Trojan War, an arrow hits Achilles in the heel and kills him.
The... | |
Complete the sentence.
The word "antebellum" means (). | [
"before the war",
"before the feast",
"after the long peace",
"after the election"
] | 0 | The time period in United States history between 1820 and 1861 is often called the antebellum period. During the antebellum period, the North and South became more divided. In the following questions, you learn more about the changes that happened during the antebellum period.
The following table shows other words that... | closed choice | grade8 | social science | us-history | The Antebellum period | Causes of the Civil War: Missouri Compromise to Bleeding Kansas | Look at the underlined parts of the table.
All the words that use the root "ante" mean to come before something else. So, the root ante means "before."
All the words that use the root "bellum" mean to fight or cause war.So, the root bellum means "war."
So, the word "antebellum" means "before the war." The antebellum pe... | ||
Not supported with pagination yet | Which tense does the sentence use?
Mrs. Blanchard sings a pretty song. | [
"present tense",
"future 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.
Mo... | The sentence is in present tense. You can tell because it uses a present-tense verb, sings. The verb ends in -s and tells you about something that is true or happening now. | |
Not supported with pagination yet | What is the mass of an elephant? | [
"4,590 grams",
"4,590 kilograms"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an elephant is 4,590 kilograms.
4,590 grams is too light. |
Not supported with pagination yet | Which object has the most thermal energy? | [
"a 5-kilogram bucket of water at a temperature of 85°F",
"a 5-kilogram bucket of water at a temperature of 92°F",
"a 5-kilogram bucket of water at a temperature of 69°F"
] | 1 | 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 move faster, the temperature goes up. The matter now has both ... | All three buckets of water have the same mass but different temperatures. Since the 92°F bucket of water is the hottest, it has the most thermal energy. |
Not supported with pagination yet | Based on this information, what is Romeo's genotype for the ear type gene? | [
"curled ears",
"Ee"
] | 1 | In a group of American curl cats, some individuals have curled ears and others have straight ears. In this group, the gene for the ear type trait has two alleles. The allele E is for curled ears, and the allele e is for straight ears.
Romeo, an American curl cat from this group, has curled ears. Romeo has one allele fo... | closed choice | grade7 | 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 genotype for a gene is its combination of alleles for that gene. Romeo has one allele for curled ears (E) and one allele for straight ears (e). So, Romeo's genotype for the ear type gene is Ee. |
Which country is highlighted? | [
"Barbados",
"Saint Lucia",
"Saint Vincent and the Grenadines",
"the Dominican Republic"
] | 0 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Barbados. | |||
Is the following statement about our solar system true or false?
Three-quarters of the planets are larger than Venus. | [
"true",
"false"
] | 1 | Use the data to answer the question below. | true-or false | grade6 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | The table tells you that there are five planets larger than Venus: Earth, Jupiter, Saturn, Uranus, and Neptune. There are eight planets total. Five-eighths is less than three-quarters. So, five-eighths of the planets are larger than Venus. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Grand Canyon.
The Grand Canyon is a steep, wide canyon that receives many visitors each year. On August 7, 1981, the temperature on the canyon floor reached 120°F!
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
The Grand Canyon is a steep, wide canyon that receives many visitors each year. On August 7, 1981, the temperature on the canyon floor reached 120°F!
The underlined part of the passage tells you about the temperature in the Grand Canyon on a specific day in 1981. This passage describes the a... | |
Not supported with pagination yet | Which figure of speech is used in this text?
I wasted time, and now doth time waste me.
—Shakespeare, Richard II | [
"apostrophe",
"chiasmus"
] | 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 id... | The text uses chiasmus, an expression in which the second half parallels the first but reverses the order of words.
The second half of the sentence reverses the order of the words waste and time relative to the first half. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Paul 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",
"hyperbole"
] | 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.
Hyperb... | 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. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magnitude of the magnetic force between them is smaller.
There is a greater distance between the magnets in Pair 1 than in Pair 2. So, the magnitude of the magnetic force is smaller in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Based on this information, what is Howie's phenotype for the fur color trait? | [
"brown fur",
"ff"
] | 0 | In a group of Labrador retrievers, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele F is for black fur, and the allele f is for brown fur.
Howie, a Labrador retriever from this group, has brown fur. Howie has two alleles for brown fur... | closed choice | grade7 | 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. Howie's observable version of the fur color trait is brown fur. So, Howie's phenotype for the fur color trait is brown fur. |
Which better describes the Lost City ecosystem? | [
"It has no sunlight. It also has organisms that crawl or stick to the ground.",
"It has shallow water. It also has organisms that crawl or stick to the ground."
] | 0 | Figure: Lost City.
Lost City is a deep sea ecosystem in the mid-Atlantic Ocean. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | The deep sea is a type of ecosystem. Deep sea ecosystems have the following features: water at the bottom of the ocean, no sunlight, and organisms that crawl or stick to the ground. So, Lost City has no sunlight. It also has organisms that crawl or stick to the ground. | |
Look at the models of molecules below. Select the elementary substance. | [
"benzene",
"chloromethane",
"hydrogen"
] | 2 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | 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 ... | |||
Not supported with pagination yet | What do these two changes have in common?
an iceberg melting slowly
baking cookies | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 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 c... | Step 1: Think about each change.
An iceberg melting is a change of state. So, it is a physical change. An iceberg is made of frozen water. As it melts, the water changes from a solid to a liquid. But a different type of matter is not formed.
Baking cookies is a chemical change. The type of matter in the cookie dough ch... | |
Not supported with pagination yet | Would you find the word equal on a dictionary page with the following guide words?
enjoy - example | [
"no",
"yes"
] | 1 | 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 equal is between the guide words enjoy - example, it would be found on that page. |
Subsets and Splits
Validation Subject & Topic Summary
Reveals the distribution and count of images across different subjects, topics, and categories, highlighting the most prevalent combinations.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of entries across different topics where images are missing, allowing for a more representative analysis of text-only data.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of text entries across different topics, ensuring that each topic is proportionally represented, which is useful for further analysis or model training.
Random Sample by Topic Ratio
This query balances the dataset by randomly selecting a proportional number of items from each topic to create a balanced subset of 3000 items, revealing how well-represented each topic is in the dataset.
Topic Counts by Grade
Provides a breakdown of the number of questions by topic (physics, chemistry, biology, geography) for each grade level, revealing the distribution of question types.
Validation Category Counts
Counts the number of unique questions per category, helping to understand the distribution of questions across different categories.
SQL Console for derek-thomas/ScienceQA
Identifies categories, questions, and answers that appear more than four times in the validation dataset with images, highlighting common or repetitive entries.
ScienceQA Validation Grouped Data
Provides a count of images and overall occurrences for each combination of subject, topic, category, and answer, helping to identify popular or common configurations.
Train Data with Numeric Choices
This query identifies distinct rows in the dataset where one of the elements in the choices column contains a number and the image column is null, providing insight into data completeness and specific patterns in the choices.
Physics Train with Images and Lectures
Retrieves physics educational records with images and lectures for specific grade levels, providing basic filtering but offering limited analytical insight beyond data availability.
Physics Q&As with Images
Retrieves physics-related training examples with images for specific grade levels, providing basic filtered data but offering limited analytical insight beyond simple categorization.
Physics Questions Gr 2-6 With Images
Retrieves physics-related test items with images for specific grade levels, providing basic filtered data but offering limited analytical insights beyond simple data retrieval.
Filter Text-only Train Questions
Retrieves questions and related metadata from the dataset excluding those with images, offering basic data filtering.
Skills Without Images
Counts the number of skills where the image is missing, providing a basic overview of incomplete data.
Top 10 Hard Text Questions
Retrieves the top 10 longest questions without images, ordered by grade level in descending order, providing basic insight into potentially more complex questions.
SQL Console for derek-thomas/ScienceQA
Counts the occurrences of each category, question, and answer combination where an image is present, providing basic filtering on the dataset.
List ScienceQA Topics
Lists all unique topics in the dataset, which provides a basic overview of the categories present.
Cultural Questions Without Images
Retrieves 100 entries from the 'train' dataset where the image is missing and the topic is 'culture', providing basic filtering with limited analytical value.
Biology Skills for Grades 2 & 3
Lists unique skills and categories for biology topics in grades 2 and 3, providing basic filtering of the dataset.
Biology Qs for Grades 2 &
Retrieves all entries for grade 2 and grade 3 students focusing on the biology topic, providing a basic filtered view of the dataset.
Biology Grade 3 Questions Count
Counts the number of entries for grade 3 students in the biology topic, providing a basic count of data points.
Select Test Rows With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering without deep analytical value.
Test Images Query
This query retrieves a limited sample of rows where the image column is not null, providing basic filtering but minimal analytical value.
Test Data with Images
The query filters out rows where the image column is not null, providing a basic subset of the data but without much analytical insight.
Select Test Entries With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering but no deeper analytical insight.