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Not supported with pagination yet | Suppose Kimberly decides to make potato soup. Which result would be a cost? | [
"The potato soup will be tastier than the beef barley soup would have been.",
"Kimberly will spend more time making the potato soup than she would have spent making the beef barley soup."
] | 1 | Kimberly is deciding whether to make potato soup or beef barley soup for dinner. She wants dinner to be as tasty as possible. But she is also hungry and wants to eat soon. | 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 Kimberly wants or needs:
Kimberly will spend more time making the potato soup than she would have spent making the beef barley soup. |
What is the name of the colony shown? | [
"Alabama",
"Connecticut",
"Vermont",
"New Hampshire"
] | 3 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
What is the capital of New Hampshire? | [
"Manchester",
"Trenton",
"Boston",
"Concord"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Concord is the capital of New Hampshire. | |||
Not supported with pagination yet | Which type of sentence is this?
As Harry sat down on the rickety old chair, it abruptly collapsed beneath him. | [
"simple",
"complex",
"compound-complex",
"compound"
] | 1 | closed choice | grade8 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is complex. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction as.
As Harry sat down on the rickety old chair, it abruptly collapsed beneath him. | |
Not supported with pagination yet | Is this a run-on sentence?
At Okunoin, Japan's largest cemetery, visitors will find some unusual memorials, there's even a monument to puffer fish that have died at the hands of chefs. | [
"no",
"yes"
] | 1 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify run-on sentences | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma s... | This is a run-on sentence. It is a comma splice formed from two sentences run together, joined by just a comma.
At Okunoin, Japan's largest cemetery, visitors will find some unusual memorials, there's even a monument to puffer fish that have died at the hands of chefs.
Here is one way to fix the run-on sentence:
At Oku... | |
Not supported with pagination yet | What information supports the conclusion that Diane inherited this trait? | [
"Some people use a hair dryer to straighten their hair. But Diane and her brothers have naturally straight hair.",
"Both of Diane's biological parents have naturally black hair.",
"When she was younger, Diane wore ribbons in her naturally black hair."
] | 1 | Read the description of a trait.
Diane has naturally black hair. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Identify the question that Joseph's experiment can best answer. | [
"Can pennies hold more drops of water mixed with dish soap or water mixed with hand soap?",
"Can pennies hold more drops of pure water or water mixed with hand soap?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Joseph used a dropper to put equal-sized drops of pure water, one at a time, onto a penny. The drops stayed together and formed a dome on the penny's surface. Joseph recorded the number of drops he could add before the ... | 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... | ||
Not supported with pagination yet | Which is a compound sentence? | [
"The package includes some old letters from my grandma to my dad and a broken pocket watch.",
"Before the performance, Vicky tied a satin sash around her waist, and Nicole braided her hair."
] | 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 second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction and.
Before the performance, Vicky tied a satin sash around her waist, and Nicole braided her hair. | |
Which animal is also adapted to be camouflaged in a sandy desert? | [
"flat-tail horned lizard",
"European green lizard"
] | 0 | Horned vipers live in the deserts of Africa and the Middle East. The is adapted to be camouflaged in a sandy desert.
Figure: horned viper. | closed choice | grade5 | 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 horned viper.
The horned viper has sand-colored scales covering its body. It is adapted to be camouflaged in a sandy desert. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The flat-tail horned lizard has sand-colored scales co... | |
What is the capital of Colorado? | [
"Boulder",
"Atlanta",
"Seattle",
"Denver"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | What information supports the conclusion that Ed acquired this trait? | [
"Ed learned how to knit in an after school program.",
"Ed knits sweaters using cotton, wool, and other types of yarn."
] | 0 | Read the description of a trait.
Ed knows how to knit sweaters. | closed choice | grade6 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
What is the capital of Arizona? | [
"Charleston",
"Memphis",
"Phoenix",
"Tucson"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Phoenix is the capital of Arizona. | |||
Which of these organisms contains matter that was once part of the bilberry? | [
"barren-ground caribou",
"snowy owl"
] | 1 | 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 that starts from the bilberry.There is one path matter can take from the bilberry to the snowy owl: bilberry->brown lemming->short-tailed weasel->snowy owl. There are two paths matter can take from the ... | |
Select the organism in the same species as the Andean gull. | [
"Larus livens",
"Goura victoria",
"Chroicocephalus serranus"
] | 2 | This organism is an Andean gull. Its scientific name is Chroicocephalus serranus. | closed choice | grade6 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | An Andean gull's scientific name is Chroicocephalus serranus.
Chroicocephalus serranus has the same scientific name as an Andean gull. So, these organisms are in the same species.
Goura victoria does not have the same scientific name as an Andean gull. So, Chroicocephalus serranus and Goura victoria are not in the same... | |
Which property do these three objects have in common? | [
"transparent",
"flexible",
"colorful"
] | 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.
A colorful object has one or more bright colors. All three objects are colorful.
You can see clearly through a transparent object. The flip-flops and the hot air balloon are not transparent.
A flexible object can be folded or bent without breaking ea... | |
Select the organism in the same species as the black-headed gull. | [
"Chroicocephalus ridibundus",
"Cyanocitta cristata",
"Goura cristata"
] | 0 | This organism is a black-headed gull. Its scientific name is Chroicocephalus ridibundus. | closed choice | grade8 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A black-headed gull's scientific name is Chroicocephalus ridibundus.
Cyanocitta cristata does not have the same scientific name as a black-headed gull. So, Chroicocephalus ridibundus and Cyanocitta cristata are not in the same species.
Goura cristata does not have the same scientific name as a black-headed gull. So, Ch... | |
Complete the sentence.
The mutation in the () affected the structure and function of the (). | [
"MCR1 protein . . . MCR1 gene",
"MCR1 gene . . . MCR1 protein"
] | 1 | The following passage describes the effects of a gene mutation, which is a permanent change in a gene. Read the passage and then follow the instructions below.
The hairs in a jaguar's coat are colored by molecules called pigments. The pigments are made in cells at the base of each hair. When these cells make light pig... | closed choice | grade6 | natural science | biology | Genes to traits | Describe the effects of gene mutations on organisms | An organism's genes contain information about its proteins. Each gene encodes, or contains the instructions for making, one protein or a group of proteins.
A permanent change in a gene is called a mutation. Because a mutation changes a gene, the mutation may change the structure of the protein encoded by that gene.
The... | A mutation in a gene may affect the protein it encodes.
So, the mutation in the MCR1 gene affected the structure and function of the MCR1 protein. | |
Not supported with pagination yet | What kind of sentence is this?
In the game today, Norma hit a home run with bases loaded! | [
"declarative",
"interrogative",
"exclamatory"
] | 2 | closed choice | grade9 | 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 always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An imperative sentence makes a request or a demand and usually ends with a period. If a demand shows strong feeling, it can ... | The sentence is a statement that shows strong feeling and ends with an exclamation point. It is an exclamatory sentence. | |
Not supported with pagination yet | Which correctly shows the title of an article? | [
"Sunrise on the Shutdown",
"\"Sunrise on the Shutdown\""
] | 1 | closed choice | grade3 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, or article should be in quotation marks.
"You Are My Sunshine" | An article should be in quotation marks.
The correct title is "Sunrise on the Shutdown." | |
What can a seed grow into? | [
"a flower",
"a fruit",
"a new plant"
] | 2 | This watermelon has seeds inside. | closed choice | grade4 | natural science | biology | Plants | Describe and construct flowering plant life cycles | Many plants have flowers. These plants can use their flowers to reproduce, or make new plants like themselves. How do plants use their flowers to reproduce?
First, the male part of the flower makes pollen, and the female part makes eggs. Animals, wind, or water can move pollen. Pollination is what happens when pollen i... | A seed can germinate and grow into a new plant.
The new plant can grow fruit and flowers. But a seed does not grow into a fruit or a flower. | |
Which country is highlighted? | [
"Antigua and Barbuda",
"Saint Kitts and Nevis",
"Barbados",
"Dominica"
] | 0 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Antigua and Barbuda. | |||
Which continent is highlighted? | [
"Europe",
"Africa",
"South America",
"Australia"
] | 3 | closed choice | grade3 | social science | geography | Geography | Identify oceans and continents | A continent is one of the seven largest areas of land on earth. | This continent is Australia. | ||
Not supported with pagination yet | Which closing is correct for a letter? | [
"Many Thanks,\nLiz",
"Many thanks,\nLiz"
] | 1 | closed choice | grade4 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | How long is a tennis racket? | [
"60 kilometers",
"60 centimeters"
] | 1 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers?
The number 16 on its own does not give you much informa... | The better estimate for the length of a tennis racket is 60 centimeters.
60 kilometers is too long. |
Not supported with pagination yet | What does the verbal irony in this text suggest?
After a jog around the block, Jasmine collapsed on the couch and declared with a wheeze, "Well, I'm ready to run a marathon." | [
"Jasmine was out of shape.",
"Jasmine plans to run more."
] | 0 | closed choice | grade6 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Ready to run a marathon ironically suggests that Jasmine was out of shape. She was actually far from ready to run a marathon. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
This fast food chain claims that they've served five billion people, so they must have the best hamburger in town. Five billion people can't be wrong! | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 0 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that the fast food chain has the best hamburger, because they've served five billion people. However, even though they've served five billion people, that doesn't necessarily mean that they have the best hamburger. This illustrates a type of logical fallacy known as the bandwagon fallacy. | |
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 the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 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, but some of them are different sizes and 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The smaller the magnets, the smaller the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 1 than in Pair 2. So, the magnit... | |
Not supported with pagination yet | Which figure of speech is used in this text?
The city of Bloomington is currently experiencing a minor crisis. Its sanitation workers are on strike, and the garbage is piling up in the streets. | [
"paradox",
"oxymoron"
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Minor crisis is a contradiction, because minor means small or insignificant, and a crisis is a large problem. | |
Not supported with pagination yet | Is the following statement true or false?
An animal cell has a cell membrane. | [
"true",
"false"
] | 0 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | An animal cell has a cell membrane.
This statement is true. Every cell has a cell membrane. The cell membrane controls which substances enter and leave the cell. | ||
Complete the sentence.
An Indian flying fox is a (). | [
"bird",
"bat",
"fox"
] | 1 | This picture shows an Indian flying fox. | closed choice | grade2 | natural science | literacy-in-science | Animals | Pollinator: Indian flying fox | Indian flying foxes are bats. Bats are mammals with webbed wings. Like other mammals, they have fur and feed their young milk. | ||
Not supported with pagination yet | Using only these supplies, which question can Kevin investigate with an experiment? | [
"Which type of tree do the squirrels feed from most often?",
"Do the squirrels eat walnuts from large feeders more often than from small feeders?",
"Do the squirrels select sunflower seeds or walnuts more often?"
] | 2 | Kevin 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 s... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
What do seeds grow into? | [
"fruit",
"flowers",
"new plants"
] | 2 | This drawing shows tomato seeds. | closed choice | grade2 | natural science | biology | Plants | How do flowering plants make new plants? | Many plants have flowers. These plants can use their flowers to make new plants. How do plants use their flowers to make new plants?
Flowers make a powder called pollen. Animals, wind, or water can move pollen. They can move pollen to the female part of the flower. Then, the pollen helps the flower grow seeds and fruit... | Seeds can grow into new plants.
The new plants can grow fruit and flowers. But seeds do not grow directly into fruit or flowers. | |
Not supported with pagination yet | Which tense does the sentence use?
The anthropologists will go into the canyon. | [
"past tense",
"present tense",
"future tense"
] | 2 | closed choice | grade5 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, go. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | What do these two changes have in common?
a piece of pear turning brown
baking cookies | [
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are only physical changes.",
"Both are caused by heating."
] | 0 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
A piece of a pear turning brown is a chemical change. The substances in the pear react with oxygen in the air and turn into a different type of matter.
If you scrape off the brown part of the pear, the inside will still be white. The inside hasn't touched the air. So the chemical change... | |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her narrative voice?
During our last game, our pitcher Felipe suddenly grabbed his wrist after throwing a fastball. Coach Hoffman asked him if he was OK, and Felipe said that it hurt. None of us knew what was wrong with him and he w... | [
"by using active voice",
"by removing biased language",
"by adding dialogue"
] | 2 | closed choice | grade11 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | During peer review, you read and respond to a fellow student's writing. While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the... | The writer could best improve his or her narrative voice by adding dialogue.
For example, the writer could replace the underlined sentences with exchanges between Coach Hoffman and Felipe.
During our last game, our pitcher Felipe suddenly grabbed his wrist after throwing a fastball. Coach Hoffman asked him if he was OK... | |
Which animal's mouth is also adapted to eat plant matter? | [
"zebra",
"cougar"
] | 0 | Impalas are herbivores, or plant eaters. They eat grass and leaves. The 's mouth is adapted to grind up and eat plant matter.
Figure: impala. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's mouth is one example of an adaptation. Animals' mouths can be adapted in different ways. For example, a large mouth with sharp teeth might help an animal tear ... | Look at the picture of the impala.
The impala has long jaws and flat teeth. Its mouth is adapted to eat plant matter. The long jaws can help the impala reach leaves and grass. The flat teeth can help it cut and grind up the food into soft pieces it can swallow.
Now look at each animal. Figure out which animal has a sim... | |
Not supported with pagination yet | Select the one animal that has all of the amphibian traits listed above. | [
"Barn owls live on every continent except Antarctica. They have feathers, two wings, and a beak. They hatch from eggs with shells.",
"California newts have moist, smooth skin that is brown and orange. Their eggs have no shells, but they are protected by a poisonous gel. Young California newts live in shallow pool... | 1 | Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Amphibians have the following traits:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to th... |
Is the following statement about our solar system true or false?
The volume of Mercury is less than one-tenth of the volume of Earth. | [
"true",
"false"
] | 0 | Use the data to answer the question below. | true-or false | grade7 | 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. | To determine if this statement is true, calculate the value of one-tenth the volume of Earth.
Then compare the result to the volume of Mercury. The volume of Mercury is 60 billion km^3, which is less than 109 billion km^3. So, the volume of Mercury is less than one-tenth of the volume of Earth. | |
What is the capital of Wisconsin? | [
"Madison",
"Green Bay",
"Cleveland",
"Des Moines"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Madison is the capital of Wisconsin. | |||
Not supported with pagination yet | Complete the statement. Assume that Robert's mass did not change.
The gravitational potential energy stored between Robert and Earth () as he rode the escalator. | [
"increased",
"decreased",
"stayed the same"
] | 0 | Read the text about a person in motion.
Robert rode an escalator from the first floor to the second floor of a shopping mall. | closed choice | grade6 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between Robert and the center of Earth changed.
The second floor is higher than the first floor. As he rode the escalator toward the second floor, the distance between Robert and the center of Earth increased. So, the gravitational potential energy stored between Robert and Earth increased ... |
Not supported with pagination yet | Which tense does the sentence use?
The farmer will grow corn in that field. | [
"present tense",
"past tense",
"future tense"
] | 2 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, grow. The verb tells you about something that is going to happen. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | 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 north pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: London.
It is rare for snow to fall in London.
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 | 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.
It is rare for snow to fall in London.
This passage tells you about the usual pattern of precipitation in London. This passage does not describe what the weather is like on a particular day. So, this passage describes the climate. | |
Which is this organism's scientific name? | [
"Actias luna",
"luna moth"
] | 0 | This organism is a luna moth. It is also called Actias luna. | 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,... | Actias luna is written in italics. The first word is capitalized, and the second word is not.
So, Actias luna is the scientific name. | |
Which country is highlighted? | [
"Samoa",
"Kiribati",
"the Marshall Islands",
"Solomon Islands"
] | 2 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is the Marshall Islands.
Does the Marshall Islands have any territorial disputes?
The Marshall Islands claims to own Wake Island, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
The United States claimed Wake Island in 1899 and has... | |||
Not supported with pagination yet | Which is a compound sentence? | [
"The highway is full of cracks, so the workers are repairing it.",
"The engine in the car makes a strange noise."
] | 0 | closed choice | grade3 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so.
The highway is full of cracks, so the workers are repairing it. | |
Complete the statement.
Carbon dioxide is (). | [
"a compound",
"an elementary substance"
] | 0 | The model below represents a molecule of carbon dioxide. Carbon dioxide is the gas that forms the bubbles in soft drinks and sparkling water. | closed choice | grade7 | 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 carbon dioxide is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the chem... | |
What is the capital of North Dakota? | [
"Bismarck",
"Saint Paul",
"Fargo",
"Pierre"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Bismarck is the capital of North Dakota. | |||
Select the organism in the same genus as the Canada lynx. | [
"Lynx canadensis",
"Felis catus",
"Felis chaus"
] | 0 | This organism is a Canada lynx. Its scientific name is Lynx canadensis. | closed choice | grade7 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A Canada lynx's scientific name is Lynx canadensis. The first word of its scientific name is Lynx.
Felis catus is in the genus Felis. The first word of its scientific name is Felis. So, Felis catus and Lynx canadensis are not in the same genus.
This organism and the Canada lynx are in the same genus and the same specie... | |
What is the capital of Nevada? | [
"Carson City",
"Boise",
"Sacramento",
"Reno"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | |||
Not supported with pagination yet | Select the one true statement. | [
"An animal cell has chloroplasts but not a cell wall.",
"Chloroplasts use the energy from sunlight to make sugar for plant cells.",
"Lysosomes are the sites where ribosomes build proteins in animal cells."
] | 1 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
Which country is highlighted? | [
"Kiribati",
"Nauru",
"the Marshall Islands",
"Vanuatu"
] | 1 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Nauru. | |||
Select the organism in the same species as the Ural owl. | [
"Tyto alba",
"Strix uralensis",
"Falco peregrinus"
] | 1 | This organism is a Ural owl. Its scientific name is Strix uralensis. | closed choice | grade4 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A Ural owl's scientific name is Strix uralensis.
Strix uralensis has the same scientific name as a Ural owl. So, these organisms are in the same species.
Tyto alba does not have the same scientific name as a Ural owl. So, Strix uralensis and Tyto alba are not in the same species.
Falco peregrinus does not have the same... | |
Select the amphibian below. | [
"bull shark",
"red salamander"
] | 1 | Amphibians have moist skin and begin their lives in water. An olive toad is an example of an amphibian. | closed choice | grade3 | 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 bull shark is a fish. It lives underwater. It has fins, not limbs.
Bull sharks can live in both fresh and salt water. They are found in rivers and in shallow parts of the ocean.
A red salamander is an amphibian. It has moist skin and begins its life in water.
Red salamanders do not have lungs. They breathe through th... | |
Not supported with pagination yet | Using only these supplies, which question can Jaden investigate with an experiment? | [
"Does a pie crust made with white flour burn more quickly when the pie is cooked in a glass pan or in an aluminum pan?",
"Do pie crusts made with white flour burn less quickly when covered with aluminum foil or when left uncovered?",
"Does a pie crust made with white flour burn more quickly than a pie crust mad... | 0 | Jaden is baking a pie. He notices that the crust burns before the pie is fully cooked. He wonders what factors affect whether a pie crust will burn in the oven. So, he decides to design an experiment. He has the following supplies available:
ingredients for pumpkin pie filling
ingredients for apple pie filling
two pie ... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Which i in row B? | [
"the theater",
"the fire department",
"the grocery store",
"the fast-food restaurant"
] | 1 | 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 fire department is in row B. | ||
Not supported with pagination yet | Select the animal. | [
"Tulips have a green stem.",
"Flamingos walk and fly."
] | 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 tulip is a plant. It has a green stem.
Tulips grow best in cool, dry places.
A flamingo is an animal. It walks and flies.
Flamingos live in large groups. These groups are called flocks. | |
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 the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 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, but some of them are different sizes and shapes. | 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,... | The magnets in Pair 1 attract. The magnets in Pair 2 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.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Not supported with pagination yet | How long is a seesaw? | [
"4 yards",
"4 feet",
"4 miles",
"4 inches"
] | 0 | Select the best estimate. | closed choice | grade7 | 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 seesaw is 4 yards.
4 inches and 4 feet are too short. 4 miles is too long. |
Which property do these two objects have in common? | [
"breakable",
"soft"
] | 0 | Select the better answer. | closed choice | grade2 | 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.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A soft object changes shape when you squeeze it. Neither of the objects are soft.
A breakable object will break into pieces if you drop it. Both objects are breakable.
The property that both objects have in common is breakable. | |
Not supported with pagination yet | Complete the sentence.
Animals produce waste, which (). | [
"their bodies cannot use",
"all stays in the animal's body forever",
"is used to help the animal grow"
] | 0 | closed choice | grade4 | natural science | biology | Animals | Body systems: removing waste | Waste is material within an animal's body that it cannot use. If waste builds up in an animal's body, it will make the animal sick. So, the waste must be removed.
Excretion and elimination are two ways waste can be removed from an animal's body.
Waste that is made by an animal's cells is removed by the excretory syste... | Animals produce material that their bodies cannot use. This material is waste. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Nick waved goodbye to Tyler as his train pulled out of the station.",
"As Tyler's train pulled out of the station, Nick waved goodbye to him."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun his could refer to Nick or Tyler.
Nick waved goodbye to Tyler as his train pulled out of the station.
The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is clear.
As... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Don't ever get a ride from Amanda. Her brother has been driving for only six months, and he's already gotten three speeding tickets. | [
"hasty generalization: a very broad claim based on very little evidence",
"guilt by association: a negative association intended to discredit someone or something"
] | 1 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Amanda must be a reckless driver, because her brother is a reckless driver. However, even though Amanda's brother is reckless, that doesn't necessarily mean that Amanda is, too. This illustrates a type of logical fallacy known as guilt by association. | |
Not supported with pagination yet | Which is a complex sentence? | [
"Freedom of speech and trial by jury are two important rights in the United States Constitution.",
"When the submarine surfaced, a crowd of people on the shore gathered and stared at the rare sight."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The first sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction when.
When the submarine surfaced, a crowd of people on the shore gathered and stared at the rare sight. | |
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 the same in both pairs.",
"The magnitude of the magnetic force is smaller 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. | 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,... | 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.
Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are... | |
Not supported with pagination yet | Complete the sentence.
In this chemical reaction, propane is a (). | [
"reactant",
"product"
] | 0 | This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Have you ever eaten food that was cooked on a grill? Some grills are powered by propane gas. The propane combines with oxygen in the air to make carbon dioxide gas and water vapor. This process releases energy in the form... | closed choice | grade7 | natural science | chemistry | Chemical reactions | Identify reactants and products | A chemical change occurs when new substances are formed from existing substances. This process is called a chemical reaction.
In a chemical reaction, one or more substances change into one or more different substances. During the reaction, the atoms of the original substances are rearranged to form other substances.
Th... | Read the underlined text carefully. Look for information about what happens to propane in this chemical reaction.
Have you ever eaten food that was cooked on a grill? Some grills are powered by propane gas. The propane combines with oxygen in the air to make carbon dioxide gas and water vapor. This process releases ene... |
Identify the question that Colton's experiment can best answer. | [
"Can pennies hold more drops of water mixed with dish soap or water mixed with hand soap?",
"Can pennies hold more drops of pure water or water mixed with hand soap?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Colton used a dropper to put equal-sized drops of pure water, one at a time, onto a penny. The drops stayed together and formed a dome on the penny's surface. Colton recorded the number of drops he could add before the ... | 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 of these states is farthest north? | [
"Arkansas",
"North Carolina",
"Illinois",
"Arizona"
] | 2 | closed choice | grade5 | social science | geography | Maps | 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 north arrow is pointing. Illinois is farthest north. | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
Eva claims that the Greenwood Ferrets' new quarterback is better than their old one. I think Eva is being unfair: the Ferrets' old quarterback wasn't a terrible player. | [
"guilt by association: a negative association intended to discredit someone or something",
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 1 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Eva thinks the Ferrets' old quarterback was a terrible player. But this misrepresents Eva's argument. Eva only claims that the Ferrets' new quarterback is better. This argument doesn't necessarily imply that the old quarterback was a bad player. This illustrates a type of logical fallacy known as a... | |
Which is the main persuasive appeal used in this ad? | [
"ethos (character)",
"logos (reason)",
"pathos (emotion)"
] | 1 | closed choice | grade7 | 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 that the writer or speaker is trustworthy or is an authority on a subject. An ad that appeals to ethos might do one... | The ad appeals to logos, or reason. It mentions clinical trials and uses specific figures (4 times as effective). | ||
Which of these states is farthest east? | [
"Montana",
"Arkansas",
"Washington",
"Kansas"
] | 1 | 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. Arkansas is farthest east. | ||
Is a hammer a solid, a liquid, or a gas? | [
"a solid",
"a gas",
"a liquid"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a 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 i... | A hammer is a solid. A solid has a size and shape of its own.
A hammer is made of iron and wood. Both iron and wood are solids. | ||
What is the name of the colony shown? | [
"North Carolina",
"Maryland",
"South Carolina",
"Indiana"
] | 0 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is North Carolina. | |||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 2.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is stronger in Pair 1."
] | 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 | 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 2 are closer together than the magnets in Pair 1. So, the magnetic force is stronger in Pair 2 than in Pair 1. | |
What is the capital of Mississippi? | [
"Burlington",
"Austin",
"Albuquerque",
"Jackson"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | |||
Which country is highlighted? | [
"Fiji",
"Palau",
"the Federated States of Micronesia",
"Solomon Islands"
] | 1 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Palau. | |||
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 | Is the following trait inherited or acquired?
Cindy has five toes on each foot. | [
"inherited",
"acquired"
] | 0 | Hint: Cindy was born with five toes on each foot. | 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... | Most humans are born with five toes on each foot. So, having five toes is an inherited trait. |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The meadow grasses () in the light breeze of a summer evening. | [
"waltzed",
"moved"
] | 0 | closed choice | grade8 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the word waltzed. It describes the grasses as if they were people who were dancing. | |
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 | grade7 | 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... | The particles in both samples have the same average speed, but each particle in sample A has more mass than each particle 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 kinetic energy, sample A mus... | |
What is the name of the colony shown? | [
"North Carolina",
"Georgia",
"Maryland",
"Virginia"
] | 1 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Not supported with pagination yet | Would you find the word partner on a dictionary page with the following guide words?
plastic - prance | [
"no",
"yes"
] | 0 | yes or no | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since partner is not between the guide words plastic - prance, it would not be found on that page. | |
What is the capital of Missouri? | [
"Saint Louis",
"Tallahassee",
"Jefferson City",
"Des Moines"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Jefferson City is the capital of Missouri. | |||
What is the capital of New Mexico? | [
"Albuquerque",
"Salt Lake City",
"Phoenix",
"Santa Fe"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | |||
Not supported with pagination yet | What information supports the conclusion that Beth acquired this trait? | [
"When Beth was young, her grandmother taught her how to cut chili peppers.",
"Beth learned how to make chili from a recipe book.",
"Beth's friends like to make chili with her."
] | 1 | Read the description of a trait.
Beth knows how to make chili. | 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 | Does this passage describe the weather or the climate?
Brad lives in a city that is often covered by thick stratus clouds. | [
"climate",
"weather"
] | 0 | 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 | 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.
Brad lives in a city that is often covered by thick stratus clouds.
This passage tells you about the usual clouds where Brad lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
same - shriek | [
"sudden",
"scythe"
] | 1 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since scythe is between the guide words same - shriek, it would be found on that page. | |
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."
] | 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 | grade5 | natural science | physics | Magnets | 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. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Josiah remarked that the new book on anti-gravity was impossible to put down. | [
"pun",
"alliteration"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses a pun, a word or phrase that humorously suggests more than one meaning.
Impossible to put down means that the book is so good that it is hard to stop reading. The phrase impossible to put down is also a joke about anti-gravity: if gravity pulls things down, perhaps anti-gravity does the opposite and makes... | |
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"The Brookfield Daily Mail was forced to issue a retraction after printing a factoid about Brookfield's founder. It turned out that the reporter had written the article based on local legend rather than researching the actual history.",
"A reporter for the Brookfield Daily Mail dug up an amusing factoid about Bro... | 0 | closed choice | grade11 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses factoid in its traditional sense: something made up presented as a true fact.
The Brookfield Daily Mail was forced to issue a retraction after printing a factoid about Brookfield's founder. It turned out that the reporter had written the article based on local legend rather than researching the act... | |
Not supported with pagination yet | Franklin starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Franklin need to pull with a larger force? | [
"a friend who weighs 21 pounds",
"a friend who weighs 35 pounds"
] | 1 | Franklin gives two friends a ride in his wagon. One friend sits in the wagon at a time. | 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 friend who is heavier.
A friend who weighs 35 pounds is heavier than a friend who weighs 21 pounds. So, to move the wagon at the same speed each time, Franklin needs to use a larger force to start moving the wagon with a friend who weighs 35 pounds. |
Is the following statement about our solar system true or false?
Of the four smallest planets, two are made mainly of gas. | [
"true",
"false"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | 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 volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To decide which four planets are the smallest, look at the volumes and compare the exponents. The volumes of Mercury, Venus, Earth, and Mars have the smallest exponents. So, these four planets are the smallest.
These four planets are made mainly of rock. So, of the four smallest planets, none are made mainly of gas. | |
Which of these states is farthest east? | [
"Oklahoma",
"Maine",
"Washington",
"Montana"
] | 1 | 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 east arrow is pointing. Maine is farthest east. | ||
Which of the following could Camille's test show? | [
"whether she added enough nutrients to help the bacteria produce 20% more insulin",
"whether producing more insulin would help the bacteria grow faster",
"whether different types of bacteria would need different nutrients to produce insulin"
] | 0 | 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 | Is the following trait inherited or acquired?
Ellie has naturally curly hair. | [
"acquired",
"inherited"
] | 1 | Hint: Some humans are born with naturally curly hair. Others are born with naturally straight hair. | 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... | Human hair can be naturally curly or naturally straight. Curly and straight are examples of hair texture.
Some people decide to change how their hair looks. But this doesn't affect the natural texture of their hair. So, having naturally curly hair is an inherited trait. |
After the Akkadian Empire ended, many cities and empires tried to control Mesopotamia. Around the 1790s BCE, which empire started controlling Mesopotamia? | [
"the Akkadian Empire",
"the Elamite Empire",
"the Babylonian Empire",
"the Neo-Sumerian Empire"
] | 2 | Look at the table. Then answer the question below. | closed choice | grade6 | social science | world-history | Ancient Mesopotamia | Mesopotamian empires | Look at the table.
The abbreviation "ca." stands for the Latin word, circa. Circa means "about." It indicates when a date is estimated. So, around 1792 BCE, the Babylonian Empire started controlling Mesopotamia.
The Babylonian (ba-bih-LOH-nee-in) Empire came after the Akkadian and Neo-Sumerian empires. The capital of t... | ||
Not supported with pagination yet | Suppose Ayana decides to join the Theater Club. Which result would be a cost? | [
"Ayana will save some time. She would have spent more time in the Photography Club than in the Theater Club.",
"Ayana will give up the chance to be in the Photography Club. She would have had more fun in the Photography Club than in the Theater Club."
] | 1 | Ayana is deciding whether to join the Photography Club or the Theater 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 Ayana wants or needs:
Ayana will give up the chance to be in the Photography Club. She would have had more fun in the Photography Club than in the Theater Club. |
Based on the event chain, which house does the wolf blow down last? | [
"the wood house",
"the straw house"
] | 0 | This event chain shows the main events from the fairy tale The Three Little Pigs. | 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... | An event chain uses arrows to show the order of events. This event chain shows the main events from the fairy tale The Three Little Pigs.
Follow the arrows to see the order of events. An arrow points from A wolf comes along and blows down the first pig's straw house to The wolf blows down the second pig's wood house. S... | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Budapest.
The Danube River flows through the city of Budapest. The winds in the city were blowing from the south on Friday.
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 | 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 Danube River flows through the city of Budapest. The winds in the city were blowing from the south on Friday.
The underlined part of the passage tells you about the wind direction in Budapest on Friday. This passage describes the atmosphere at a certain place and time. So, this passage d... | |
Not supported with pagination yet | Which type of sentence is this?
Dan always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | [
"simple",
"compound-complex",
"compound",
"complex"
] | 2 | closed choice | grade12 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is compound. It is made up of two independent clauses joined by the coordinating conjunction and.
Dan always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. |
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.