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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 greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 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,... | 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 volume of a kiddie pool? | [
"1,085 liters",
"1,085 milliliters"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a kiddie pool is 1,085 liters.
1,085 milliliters is too little. |
Not supported with pagination yet | What information supports the conclusion that Kenny inherited this trait? | [
"Kenny's mother has blue eyes. She passed this trait down to Kenny.",
"Kenny likes to wear a blue sweater to match his blue eyes."
] | 0 | Read the description of a trait.
Kenny has blue eyes. | 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... | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade3 | 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, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, 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. Poles that are the same repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which type of sentence is this?
The weather forecast had predicted severe thunderstorms, but the dark, heavy thunderclouds never materialized. | [
"complex",
"simple",
"compound",
"compound-complex"
] | 2 | 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. It is made up of two independent clauses joined by the coordinating conjunction but.
The weather forecast had predicted severe thunderstorms, but the dark, heavy thunderclouds never materialized. | |
Which rhetorical appeal is primarily used in this ad? | [
"ethos (character)",
"pathos (emotion)",
"logos (reason)"
] | 2 | closed choice | grade12 | language science | writing-strategies | Persuasive strategies | Identify appeals to ethos, pathos, and logos in advertisements | The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals.
Appeals to ethos, or character, show the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe... | The ad appeals to logos, or reason, by using a graph to show that Silcom outperforms the competition. | ||
Not supported with pagination yet | What kind of sentence is this?
I couldn't believe how talented those trapeze artists were! | [
"interrogative",
"declarative",
"exclamatory"
] | 2 | closed choice | grade6 | 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 tells about something, but it shows strong feeling and ends with an exclamation point. It is an exclamatory sentence. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Dr. Shelton is unhappy with her new assistant because simple tasks, like fetching coffee, take him years to finish. | [
"anaphora",
"hyperbole"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
Take him years to finish is an exaggeration, since it probably does not take him entire years to fetch coffee. | |
Which country is highlighted? | [
"Nauru",
"Solomon Islands",
"Fiji",
"Vanuatu"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Vanuatu.
Does Vanuatu have any territorial disputes?
Vanuatu claims to own Matthew and Hunter Islands, which are disputed islands. In other words, multiple countries or groups claim that the islands rightfully belong to them.
France has controlled the islands since 1929. But shortly after gaining indepe... | |||
Which specific humidity level was measured within the outlined area shown? | [
"12 grams of water vapor per kilogram of air",
"7 grams of water vapor per kilogram of air",
"11 grams of water vapor per kilogram of air"
] | 1 | The map below shows humidity in the lower atmosphere on September 12, 2013. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in Australia on that day.
Look at the map. Then, answer the question below.
Data source: United ... | closed choice | grade8 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show specific humidity, a measurement of the amount of water vapor in the air.
The map's legend tells you the specific humidity level that each color represents. Colors on the left in th... | Look at the colors shown within the outlined area. Then, use the legend to determine which specific humidity levels those colors represent.
The legend tells you that this air mass contained air with specific humidity levels between 2 and 8 grams of water vapor per kilogram of air.
7 grams of water vapor per kilogram of... | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
If we wake him too early, our dad is a grumpy bear. | [
"metaphor",
"simile"
] | 0 | closed choice | grade4 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | If we wake him too early, our dad is a grumpy bear.
The words dad and bear are compared without the word like or as. So, the sentence uses a metaphor. | |
Not supported with pagination yet | What information supports the conclusion that Edmond inherited this trait? | [
"Edmond's coworker also has curly hair.",
"Edmond and his biological parents have brown hair.",
"Edmond's biological father has curly hair."
] | 2 | Read the description of a trait.
Edmond has curly 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.... | |
Which country is highlighted? | [
"the Dominican Republic",
"Saint Kitts and Nevis",
"Jamaica",
"Haiti"
] | 2 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Jamaica. | |||
Not supported with pagination yet | Would you find the word steadily on a dictionary page with the following guide words?
solo - support | [
"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 steadily is between the guide words solo - support, it would be found on that page. | |
Identify the question that Kayla's experiment can best answer. | [
"Does the humidity level where tomato seeds are planted affect the number of tomato seedlings that grow?",
"Do more tomato seedlings grow when they are planted in soil with fertilizer compared to soil without fertilizer?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Kayla planted 25 tomato seeds one-half inch below the soil surface in each of six pots. Kayla added an equal amount of fertilizer to three of the six pots. She placed the pots in a plant growth chamber where all the see... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Which material is this flower pot made of? | [
"rock",
"clay"
] | 1 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the flower pot.
The flower pot is made of clay.
This flower pot is made of a type of clay called terra cotta. Terra cotta pots have a brownish-red color. Terra cotta means "baked earth" in Italian. | ||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Olivia was known among her coworkers for her spartan ways. | [
"Shakespeare",
"Greek history"
] | 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 spartan is Greek history.
Soldiers from the city of Sparta in ancient Greece were known for their self-restraint, self-discipline, and indifference to luxury.
The allusion spartan means simple and austere. | |
What is the expected ratio of offspring with a greenish-brown body to offspring with a blue body? Choose the most likely ratio. | [
"1:3",
"4:0",
"3:1",
"2:2",
"0:4"
] | 4 | In a group of rainbow trout, some individuals have a greenish-brown body and others have a blue body. In this group, the gene for the body color trait has two alleles. The allele for a greenish-brown body (B) is dominant over the allele for a blue body (b).
This Punnett square shows a cross between two rainbow trout. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with a greenish-brown body or a blue body, consider whether each phenotype is the dominant or recessive allele's version of the body color trait. The question tells you that the B allele, which is for a greenish-brown body, is dominant over the b all... | |
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 magnetic force is weaker in Pair 2.",
"The strength of the magnetic force is the same in both pairs."
] | 2 | 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. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. | |
Not supported with pagination yet | Which word does not rhyme? | [
"goal",
"meal",
"seal"
] | 0 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words seal and meal rhyme. They both end with the eal sound.
The word goal does not rhyme. It ends with a different sound. | |
What is the capital of Nebraska? | [
"Kansas City",
"Bismarck",
"Lincoln",
"Omaha"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
Dr. Wilkinson is unhappy with her new assistant because simple tasks, like fetching coffee, take him years to finish. | [
"oxymoron",
"hyperbole"
] | 1 | closed choice | grade11 | 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 hyperbole, an obvious exaggeration that is not meant to be taken literally.
Take him years to finish is an exaggeration, since it probably does not take him entire years to fetch coffee. | |
What is the capital of Arkansas? | [
"Fayetteville",
"Bismarck",
"Richmond",
"Little Rock"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Not supported with pagination yet | What information supports the conclusion that Tanvi acquired this trait? | [
"Both Tanvi and her father grow sunflowers.",
"Last summer, Tanvi's neighbor showed her how to grow sunflowers.",
"Tanvi likes to visit sunflower fields."
] | 1 | Read the description of a trait.
Tanvi knows how to grow sunflowers. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Which is a run-on sentence? | [
"The little boy popped a big bubble.",
"Nora just moved here, she's new to our country."
] | 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 ... | Nora just moved here, she's new to our country is a run-on sentence. It has two sentences that are joined by just a comma: Nora just moved here and She's new to our country. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Oklahoma.
Large thunderstorms, called supercells, often bring big clouds. This cloud was seen over the plains of Oklahoma last summer.
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.
Large thunderstorms, called supercells, often bring big clouds. This cloud was seen over the plains of Oklahoma last summer.
The underlined part of the passage tells you about the clouds seen at a certain time in Oklahoma. This passage describes the atmosphere at a certain place and time. So... | |
Not supported with pagination yet | Which figure of speech is used in this text?
For the time being, certainly, it had been found necessary to make a readjustment of rations (Squealer always spoke of it as a "readjustment," never as a "reduction") . . .
—George Orwell, Animal Farm | [
"euphemism",
"antithesis"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
A readjustment of rations is an indirect way of saying that food rations would be decreased. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Much to our shock, Josh chose to turn the other cheek when Olivia insulted him in a meeting. | [
"a song",
"the Bible"
] | 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 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 material is this plate made of? | [
"wood",
"ceramic"
] | 1 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the plate.
The plate is ceramic.
Ceramics are made of clay. The clay is baked in an oven to make it hard. This oven is called a kiln. | ||
Which of the following could Mitchell's test show? | [
"the amount of sunlight the roof would get throughout the year",
"how many solar panels could fit on each side of the roof",
"which side of the roof got more sun over one day"
] | 2 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade7 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
"This mattress is as soft as concrete," Oscar complained as he tested the bed in his hotel room. | [
"pun",
"verbal irony"
] | 1 | 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.
As soft as concrete shows verbal irony because concrete is not soft. | |
Not supported with pagination yet | What does the allusion in this text suggest?
With the gutters clogged and water rising in the streets, Bonnie, who was watching the storm from her window, commented, "We're going to need an ark to get out of here." | [
"Bonnie thinks the storm will cause major flooding.",
"Bonnie wants to protect her possessions."
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Interpret the figure 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 Bonnie 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... | |
Not supported with pagination yet | Which is a complex sentence? | [
"I can review the draft of your story unless you're still editing it.",
"Her dog happily fetched his tennis ball from the muddy puddle and eagerly waited for her to throw it again."
] | 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 first sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction unless.
I can review the draft of your story unless you're still editing it. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Darnel has a scar on his right leg. | [
"inherited",
"acquired"
] | 1 | Hint: Most scars are caused by accidents during a person's life. | 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... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. |
Which air temperature was measured within the outlined area shown? | [
"5°C",
"27°C",
"14°C"
] | 1 | The map below shows air temperatures in the lower atmosphere on October 1, 2015. The outlined area shows an air mass that influenced weather in North America on that day.
Look at the map. Then, answer the question below.
Data source: United States National Oceanic and Atmospheric Administration/Earth System Research La... | closed choice | grade6 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show air temperatures.
The map's legend tells you the temperature that each color represents. Colors on the left in the legend represent lower temperatures than colors on the right. For ... | Look at the colors shown within the outlined area. Then, use the legend to determine which air temperatures those colors represent.
The legend tells you that this air mass contained air with temperatures between 25°C and 35°C.
27°C is within this range.
5°C and 14°C are outside of this range. | |
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 | grade6 | 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 | What do these two changes have in common?
mixing lettuce and salad dressing
carving a piece of wood | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes."
] | 3 | 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 lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different type of matter.
Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matte... | |
Not supported with pagination yet | Select the living thing. | [
"garden snail",
"book"
] | 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 garden snail is a living thing.
Garden snails grow and respond to the world around them. They need food and water.
A book is not a living thing.
Books do not have all of the traits of living things. They do not grow or respond to the world around them. They do not need food or water. | |
Not supported with pagination yet | Using only these supplies, which question can Zoe investigate with an experiment? | [
"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 eight ounces of water in an open jar get warmer?",
"Will eight ounces of carbonated water or eight ounces of tap water... | 1 | Zoe 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 jar... | 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... | |
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."
] | 2 | 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 | grade6 | 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,... | Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are the same as in Pair 2. The distance between the magnets is also the same.
So, the magnitude of the magnetic force is the same in both pairs. | |
Select the fish below. | [
"American bullfrog",
"whale shark",
"sea turtle",
"yak"
] | 1 | Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A clownfish is an example of a fish. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | An American bullfrog is an amphibian. It has moist skin and begins its life in water.
Frogs live near water or in damp places. Most frogs lay their eggs in water.
A yak is a mammal. It has hair and feeds its young milk.
Yaks live in cold places. Their long hair helps keep them warm.
A sea turtle is a reptile. It has sc... | |
Identify the question that the students' experiment can best answer. | [
"Does the mixture of solutions release more gas when they are mixed at 25°C compared to 50°C?",
"Does the mixture's color change faster when the solutions are mixed at 25°C or 50°C?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Ten groups of chemistry students combined three solutions that, when mixed, chemically reacted and turned blue. Before mixing, five groups of students heated the solutions to 25°C, and five other groups heated the solut... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Which solution has a higher concentration of purple particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 0 | The diagram below is a model of two solutions. Each purple 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 purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container.
Use the concentration formula to find the number of purple particles per mill... | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Doug complained that the air was too humid today. | [
"weather",
"climate"
] | 0 | 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.
Doug complained that the air was too humid today.
Humidity is the amount of water in the air.
This passage tells you about the humidity today where Doug lives. It describes the atmosphere at a certain place and time. So, this passage describes the weather. | |
Which of the following could Julia and Tiana's test show? | [
"if the concrete from each batch took the same amount of time to dry",
"if a new batch of concrete was firm enough to use"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which animal is also adapted to be camouflaged among green leaves? | [
"huntsman spider",
"blue poison dart frog"
] | 0 | Leaf insects live in the forests of Asia and Australia. The is adapted to be camouflaged among green leaves.
Figure: leaf insect. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the leaf insect.
The leaf insect has a green leaf-shaped body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
This huntsman spider has a green body. It is adapted to be camouflag... | |
Not supported with pagination yet | Compare the motion of three ships. Which ship was moving at the highest speed? | [
"a ship that moved 325kilometers north in 5hours",
"a ship that moved 85kilometers north in 5hours",
"a ship that moved 335kilometers south in 5hours"
] | 2 | 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 ship moved and the time it took to move that distance. The direction each ship moved does not affect its speed.
Notice that each ship moved for 5 hours. The ship that moved 335 kilometers moved the farthest distance in that time. So, that ship must have moved at the highest speed. | |
Not supported with pagination yet | Select the plant. | [
"Koalas eat leaves.",
"Lavender bushes have many purple flowers."
] | 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 lavender bush is a plant. It has many purple flowers.
Lavender has a sweet smell. Some people use the oil from lavender bushes for perfume.
A koala is an animal. It eats leaves.
Koalas spend most of their time in trees. They sleep for up to 20 hours a day! | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is stronger in Pair 1.",
"The magnetic force is stronger 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. | closed choice | grade3 | 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 closer together, the magnetic force between them is stronger.
The magnets in Pair 1 are closer together than the magnets in Pair 2. So, the magnetic force is stronger in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Mummifying a pet cat is a strange thing to do.",
"Some ancient Egyptians mummified, or preserved, their pets' bodies."
] | 1 | closed choice | grade8 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved true by research or observation.
George Washington became president of the United States in 1789.
This statement is a fact. It can be proved by researching what year George Washington was inaugurated president.
An opinion is something that a person believes, thinks, or feels. An o... | The second sentence states a fact.
Some ancient Egyptians mummified, or preserved, their pets' bodies.
It can be proved by researching ancient Eyptian culture.
The first sentence states an opinion.
Mummifying a pet cat is a strange thing to do.
Strange shows what a person believes, thinks, or feels. Another person migh... | |
Complete the statement.
Copper is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents copper. Copper is a metal that is used in electrical wires and in coins. | closed choice | grade8 | natural science | chemistry | Atoms and molecules | Classify 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 ... | Use the model to determine whether copper is an elementary substance or a compound.
Step 1: Interpret the model.
In the space-filling model shown above, all of the balls are the same color:
. The legend shows that orange represents the chemical element with the atomic symbol Cu. So, the model shows you that copper is c... | |
What is the capital of Nevada? | [
"Detroit",
"Olympia",
"Reno",
"Carson City"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Carson City is the capital of Nevada. | |||
Which property do these three objects have in common? | [
"sweet",
"sour",
"stretchy"
] | 2 | Select the best answer. | closed choice | grade4 | 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. Grouping objects... | Look at each object.
For each object, decide if it has that property.
Sugar has a sweet taste. The bubble gum is sweet, but the balloon is not.
A stretchy object gets longer when you pull on it. All three objects are stretchy.
A lemon has a sour taste. The balloon is not sour.
The property that all three objects have i... | |
Not supported with pagination yet | Select the mixture. | [
"silver and gold",
"sugar"
] | 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 text uses the word can in its traditional sense? | [
"As they observed the animals on the open grassland, the wildlife photographer said to Evan, \"Did you know that cheetahs can run as fast as seventy-five miles per hour?\"",
"As they observed the cheetahs on the open grassland, the wildlife photographer said to Evan, \"You can borrow my camera if you want.\""
] | 0 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses can in its traditional sense: to have the ability to.
As they observed the animals on the open grassland, the wildlife photographer said to Evan, "Did you know that cheetahs can run as fast as seventy-five miles per hour?"
The first text uses can in its nontraditional sense: to have permission to.
... | |
Which i in row B? | [
"the pond",
"the gas station",
"the grocery store",
"the school"
] | 0 | closed choice | grade3 | social science | geography | Geography | Use a letter-number grid | A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers. | The pond is in row B. | ||
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 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 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. | |
Which country is highlighted? | [
"Nauru",
"the Marshall Islands",
"Vanuatu",
"Kiribati"
] | 0 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Nauru. | |||
Not supported with pagination yet | Select the animal. | [
"Salmon swim in the water.",
"Pumpkin vines have large flat leaves."
] | 0 | 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 salmon is an animal. It swims in the water.
Unlike most other fish, salmon can live in both freshwater and seawater.
A pumpkin vine is a plant. It has large flat leaves.
The largest pumpkins can be as big as a car! | |
Which of the following statements describess living in an independent city-state? | [
"I vote for a president that rules over many different cities.",
"All the decisions about my city are made by a faraway emperor.",
"My city rules itself and is not part of a larger country.",
"I live by myself in the wilderness."
] | 2 | Athens was one of the most powerful independent city-states in ancient Greece. Look at the definitions below. Then answer the question. | closed choice | grade6 | social science | world-history | Greece | Classical Athens: geography and society | Look at the definitions.
Putting the definitions together, an independent city-state is a self-ruling city with its own government. So, a city-state rules itself and is not part of a larger country.
The ancient Greeks called a city-state a polis, which was the ancient Greek word for city. Today, the root word "polis" i... | ||
Not supported with pagination yet | What does the idiom in this text suggest?
In such an unfamiliar environment, Johnny was a fish out of water. | [
"Johnny felt out of place.",
"Johnny didn't have any friends."
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Interpret the figure 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 a fish out of water suggests that Johnny felt out of place. A fish out of water is someone out of his or her usual, comfortable environment. | |
Not supported with pagination yet | Which is a compound sentence? | [
"The forecast for tomorrow calls for strong winds and light rain.",
"Reba was stung by a bee, so her finger is slightly swollen."
] | 1 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The first sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction so.
Reba was stung by a bee, so her finger is slightly swollen. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Winston has naturally brown hair. | [
"acquired",
"inherited"
] | 1 | Hint: Some people dye their hair. But this does not change their natural hair color. | closed choice | grade4 | 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... | Humans do not choose their natural hair color. Instead, children get their natural hair color from their parents. So, Winston's hair color is an inherited trait. |
Not supported with pagination yet | Which word does not rhyme? | [
"think",
"pink",
"bank"
] | 2 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words think and pink rhyme. They both end with the ink sound.
The word bank does not rhyme. It ends with a different sound. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Angkor Wat.
Angkor Wat is an ancient city located in Cambodia. A light breeze was rustling the leaves in the trees there this morning.
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.
Angkor Wat is an ancient city located in Cambodia. A light breeze was rustling the leaves in the trees there this morning.
The underlined part of the passage tells you about the wind in Angkor Wat this morning. This passage describes the atmosphere at a certain place and time. So, this passa... | |
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 announcement is more formal? | [
"The Brookfield Law Firm is so happy to tell you . . .",
"The Brookfield Law Firm is pleased to announce . . ."
] | 1 | closed choice | grade11 | 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 | What information supports the conclusion that Harper acquired this trait? | [
"Harper is most interested in human biology.",
"Harper learned biology by reading, observing, and experimenting."
] | 1 | Read the description of a trait.
Harper knows a lot about biology. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which country is highlighted? | [
"Trinidad and Tobago",
"Grenada",
"Saint Kitts and Nevis",
"Saint Vincent and the Grenadines"
] | 0 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Trinidad and Tobago. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
How could the Harry Potter movies not have won even one Academy Award? It's one of the most popular franchises of all time! | [
"false causation: the assumption that because two things happened together, one caused the other",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences",
"bandwagon fallacy: the assumption that the popular choice is automatically correct"
] | 2 | closed choice | grade12 | 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 Harry Potter franchise should have won an award because it's popular. However, the fact that a movie franchise is popular doesn't necessarily mean it's deserving of an award. This illustrates a type of logical fallacy known as the bandwagon fallacy. | |
What is the capital of Idaho? | [
"New Haven",
"Boise",
"Nampa",
"Helena"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Boise is the capital of Idaho. | |||
Not supported with pagination yet | Which tense does the sentence use?
We see a wide range of animals at the aquarium. | [
"present tense",
"past tense",
"future tense"
] | 0 | 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, see. The verb tells you about something that is true or happening now. | |
Not supported with pagination yet | What information supports the conclusion that Hunter inherited this trait? | [
"Hunter and his father both have short hair.",
"Hunter's parents were born with straight hair. They passed down this trait to Hunter."
] | 1 | Read the description of a trait.
Hunter has straight 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... | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | 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 | grade8 | 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 A has more mass than each particle in sample B. The particles in sample A also have a higher average speed than the particles in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average ... | |
Not supported with pagination yet | Select the solid. | [
"water in a bathtub",
"apple juice",
"plate"
] | 2 | closed choice | grade2 | natural science | physics | States of matter | Identify solids and liquids | Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a shape of its own.
Some solids can be bent or broken easily. Others are hard to bend or break.
A glass cup is a solid. A sock is also a solid.
When matter is a li... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Bryan's leaving his job? That's old news. He's been planning that for months. | [
"euphemism",
"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.
Old news is a contradiction, because news is recent information. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
mama - mirror | [
"message",
"mole"
] | 0 | closed choice | grade3 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since message is between the guide words mama - mirror, it would be found on that page. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
trench - twist | [
"toboggan",
"turban"
] | 1 | 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 turban is between the guide words trench - twist, it would be found on that page. | |
Not supported with pagination yet | Select the animal that has a backbone. | [
"cardinalfish",
"wolf spider"
] | 0 | Hint: Mammals, birds, fish, reptiles, and amphibians all have backbones. | closed choice | grade2 | natural science | biology | Classification | Identify animals with and without backbones | Some animals have a backbone. The backbone is made of many bones in an animal's back. An animal's backbone helps connect the different parts of its body. In the drawings below, each animal's backbone is colored orange.
Other animals do not have a backbone. In fact, these animals don't have any bones! Some animals witho... | Like other spiders, a wolf spider does not have a backbone. It has a hard outer cover.
A cardinalfish is a fish. Like other fish, a cardinalfish has a backbone. |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: Mount Kilimanjaro.
Few climbers attempt to scale Mount Kilimanjaro during March, April, and May. These months often bring low pressure and cloudy, wet conditions each year.
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.
Few climbers attempt to scale Mount Kilimanjaro during March, April, and May. These months often bring low pressure and cloudy, wet conditions each year.
The underlined part of the passage tells you about the usual pattern of barometric pressure on Mount Kilimanjaro. This passage does not de... | |
What is the capital of North Carolina? | [
"Raleigh",
"Charlotte",
"Manchester",
"Little Rock"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Suppose Chad decides to bake lemon muffins. Which result would be a cost? | [
"Chad will give up the chance to eat cornbread muffins. He thinks cornbread muffins are tastier than lemon muffins.",
"Chad will get to eat more muffins. He can make more lemon muffins than cornbread muffins."
] | 0 | Chad is deciding whether to bake cornbread muffins or lemon muffins. He wants the muffins to be tasty. But he also wants to make a lot of muffins. | 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 Chad wants or needs:
Chad will give up the chance to eat cornbread muffins. He thinks cornbread muffins are tastier than lemon muffins. |
Not supported with pagination yet | Which announcement is more formal? | [
"The Burlington Law Firm is so happy to tell you . . .",
"The Burlington Law Firm is pleased to announce . . ."
] | 1 | closed choice | grade11 | 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 | The students start rolling their backpacks at the same speed. Which backpack is pulled with a larger force? | [
"a backpack carrying 8 pounds",
"a backpack carrying 7 pounds"
] | 0 | Two students get ready to leave school. The students have the same rolling backpacks. Each student has different books in her backpack. | 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 backpack that is heavier.
A backpack carrying 8 pounds is heavier than a backpack carrying 7 pounds. So, the backpack carrying 8 pounds needs to be pulled with a larger force to start rolling at the same speed as the other backpack. |
Which of the following was a dependent variable in this experiment? | [
"the number of unwanted grasses",
"the number of times the plots were burned each year"
] | 0 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Dr. Gilbert was the land manager for a prairie that had become overrun by unwanted grasses. These grasses crowded out other plants. Dr. Gilbert thought that she could use fire to remove the unwanted grasses an... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify independent and dependent variables | Experiments have variables, or parts that change. You can design an experiment to find out how one variable affects another variable. For example, imagine that you want to find out if fertilizer affects the number of tomatoes a tomato plant grows. To answer this question, you decide to set up two equal groups of tomato... | ||
Which property matches this object? | [
"blue",
"sticky"
] | 0 | Select the better answer. | closed choice | grade2 | 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. | Look at the object.
Think about each property.
A sticky object can stick to other things. The binder is not sticky.
Blue is a color.
This color is blue. The binder is blue. | |
What is the name of the colony shown? | [
"Maryland",
"Indiana",
"Georgia",
"Virginia"
] | 2 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Which solution has a higher concentration of green particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 0 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade8 | 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 green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: Tambor Beach, Costa Rica.
Tambor Beach is located in Costa Rica, a country in Central America. The temperature in Costa Rica is warm for most of the year.
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 | grade3 | 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.
Tambor Beach is located in Costa Rica, a country in Central America. The temperature in Costa Rica is warm for most of the year.
The underlined part of the passage tells you about the usual temperature pattern in Costa Rica. This passage does not describe what the weather is like on a partic... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Jill roomed with Leah last year, but Leah's messiness became a point of contention.",
"Jill roomed with Leah last year, but her messiness became a point of contention."
] | 1 | closed choice | grade7 | language science | writing-strategies | 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 first answer choice contains a vague pronoun reference. The pronoun her could refer to Jill's or Leah's.
The second answer choice shows a possible correction for the vague pronoun reference. Her has been replaced with Leah's.
Jill roomed with Leah last year, but Leah's messiness became a point of contention. | |
What is the capital of Delaware? | [
"Dover",
"Montgomery",
"Georgetown",
"Wilmington"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Dover is the capital of Delaware. | |||
Not supported with pagination yet | Which is a simple sentence? | [
"During last night's game, the tall, lanky girl easily spiked the volleyball over the net and blocked all the other team's hits.",
"I can review the draft of your story unless you're still editing it."
] | 0 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the simple sentence. It is a single independent clause.
During last night's game, the tall, lanky girl easily spiked the volleyball over the net and blocked all the other team's hits. | |
Not supported with pagination yet | Which change better matches the sentence?
The ground in an area shakes. | [
"earthquake",
"wildfire"
] | 0 | closed choice | grade2 | natural science | earth-science | Earth events | Classify changes to Earth's surface | |||
Not supported with pagination yet | Suppose Lucy decides to join the Photography Club. Which result would be a cost? | [
"Lucy will save some time. She would have spent more time in the Theater Club than in the Photography Club.",
"Lucy will give up the chance to be in the Theater Club. She would have had more fun in the Theater Club than in the Photography Club."
] | 1 | Lucy is deciding whether to join the Theater Club or the Photography Club at school. She wants the club she joins to be fun. But she doesn't want it to take up too much time. | 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 Lucy wants or needs:
Lucy will give up the chance to be in the Theater Club. She would have had more fun in the Theater Club than in the Photography Club. |
Select the reptile below. | [
"western rattlesnake",
"western toad"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A box turtle is an example of a reptile. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A western toad is an amphibian. It has moist skin and begins its life in water.
A western rattlesnake is a reptile. It has scaly, waterproof skin. | |
Which country is highlighted? | [
"Trinidad and Tobago",
"Antigua and Barbuda",
"Grenada",
"Haiti"
] | 0 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Trinidad and Tobago. | |||
Not supported with pagination yet | What information supports the conclusion that Tanvi acquired this trait? | [
"Tanvi can fly a plane on cloudy days and at night.",
"A pilot taught Tanvi how to fly a plane.",
"Tanvi is in the Air Force. She flies a plane almost every day."
] | 1 | Read the description of a trait.
Tanvi knows how to fly a plane. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Which text uses the word random in its traditional sense? | [
"The final challenge of the contest was really random: participants had to choose three restaurants in town and serenade diners as they ate.",
"For the final challenge of the contest, participants had to choose three random restaurants in town and serenade diners as they ate."
] | 1 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses random in its traditional sense: made or occurring without a definite pattern.
For the final challenge of the contest, participants had to choose three random restaurants in town and serenade diners as they ate.
The second text uses random in its nontraditional sense: odd or out of place.
The final ... | |
In this food web, which organism contains matter that eventually moves to the earthworm? | [
"mushroom",
"barren-ground caribou",
"snowy owl",
"grizzly bear"
] | 2 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade7 | natural science | biology | Ecological interactions | Interpret food webs II | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows to the earthworm.
The only arrow pointing from the grizzly bear leads to the mushroom. No arrows point from the mushroom to any other organisms. So, in this food web, matter does not move from the grizz... | |
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 north pole of one magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other. |
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.