image imagewidth (px) 53 760 ⌀ | question stringlengths 14 862 | choices listlengths 2 5 | answer int8 0 4 | hint stringlengths 0 1.85k | task stringclasses 3
values | grade stringclasses 12
values | subject stringclasses 3
values | topic stringclasses 26
values | category stringclasses 119
values | skill stringclasses 321
values | lecture stringclasses 256
values | solution stringlengths 0 2.72k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her academic voice?
The belly produces acid to break down food. In patients who suffer from gastroesophageal reflux disease, more commonly known as GERD or acid reflux, the acid moves backward into the eating tube. Most often, GERD ... | [
"by using unbiased language",
"by avoiding first-person pronouns",
"by using more technical terms"
] | 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 academic voice by using more technical terms.
For example, the writer could use technical terms for the underlined words: stomach, esophagus, and valve.
The belly produces acid to break down food. In patients who suffer from gastroesophageal reflux disease, more commonly known a... | |
Not supported with pagination yet | What does the euphemism in this text suggest?
"Thank you for your work over the years," Mrs. Nolan said to her gardener. "As of next week, however, your services will no longer be required." | [
"The gardener is being fired.",
"The gardener is no longer obligated to work for Mrs. Nolan."
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A 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. | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The euphemism your services will no longer be required means that the gardener is being fired. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
President Rudd is an effective communicator, because he has a natural talent for speaking with people. | [
"false causation: the assumption that because two things happened together, one caused the other",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 1 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that President Rudd is an effective communicator because he communicates well. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium. | [
"to the right than to the left",
"to the left than to the right"
] | 0 | The diagram below shows a solution with one solute. Each solute particle is represented by a yellow ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time... | closed choice | grade6 | natural science | chemistry | Solutions | Diffusion across membranes | In a solution, solute particles move and spread throughout the solvent. The diagram below shows how a solution can change over time. Solute particles move from the area where they are at a higher concentration to the area where they are at a lower concentration. This movement happens through the process of diffusion.
A... | Look at the diagram again. It shows you how the solution changed during the process of diffusion.
Before the solute particles reached equilibrium, there were 5 solute particles on the left side of the membrane and 3 solute particles on the right side of the membrane.
When the solute particles reached equilibrium, there... | |
Which is this organism's common name? | [
"orange clownfish",
"Amphiprion percula"
] | 0 | This organism is Amphiprion percula. It is also called an orange clownfish. | 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,... | Amphiprion percula is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Amphiprion percula is the organism's scientific name. So, you know that orange clownfish is the common name. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
After a jog around the block, Charlotte collapsed on the couch and declared with a wheeze, "Well, I'm ready to run a marathon." | [
"Charlotte plans to run more.",
"Charlotte was out of shape."
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
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 Charlotte was out of shape. She was actually far from ready to run a marathon. | |
What is the capital of Connecticut? | [
"Bridgeport",
"Augusta",
"Phoenix",
"Hartford"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | |||
Not supported with pagination yet | Suppose Celine decides to plant the lilies. Which result would be a cost? | [
"She will save some space. The lilies will use up less space than the oak tree would have used up.",
"Celine will give up the chance to look at the oak tree. She thinks it would have looked more beautiful than the lilies."
] | 1 | Celine is deciding whether to plant lilies or an oak tree in her backyard. She wants to make her backyard more beautiful. But she also wants to leave space for doing fun things. | closed choice | grade5 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Celine wants or needs:
Celine will give up the chance to look at the oak tree. She thinks it would have looked more beautiful than the lilies. |
What is the capital of Michigan? | [
"Lansing",
"Madison",
"Detroit",
"Grand Rapids"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Lansing is the capital of Michigan. | |||
Not supported with pagination yet | What does the metaphor in this text suggest?
Laughter is sunshine; it chases winter from the human face.
—Victor Hugo, Les Misérables | [
"Laughter can affect people in different ways.",
"Laughter can brighten people's moods."
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A metaphor compares two things that are not actually alike without using like or as.
The snow formed a blanket over the town. | The text uses a metaphor, comparing two things that are not actually alike without using like or as.
The metaphor laughter is sunshine suggests that laughter can brighten people's moods. Sunshine can make a winter day brighter and warmer, and laughter has a similar effect on a bad mood. | |
Is obsidian a mineral or a rock? | [
"mineral",
"rock"
] | 1 | Obsidian has the following properties:
not made by organisms
found in nature
glassy texture
not a pure substance
solid
no fixed crystal structure | closed choice | grade8 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | The properties of obsidian match the properties of a rock. So, obsidian is a rock. | |
Which ocean is highlighted? | [
"the Atlantic Ocean",
"the Arctic Ocean",
"the Southern Ocean",
"the Indian Ocean"
] | 1 | closed choice | grade6 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Arctic Ocean. | ||
Which month is the coolest on average in Detroit? | [
"June and July",
"January and February",
"November and December"
] | 1 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location.
A line graph can be used t... | To describe the average temperature trends in Detroit, look at the graph.
Choice "Feb" is incorrect.
Choice "Jun" is incorrect.
Choice "Jul" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
Choice "Jan" is incorrect.
The average temperatures in January and February are between 25°F and 30°F. These mo... | |
Select the organism in the same genus as the blue jay. | [
"Cyanocitta stelleri",
"Goura scheepmakeri",
"Larus livens"
] | 0 | This organism is a blue jay. Its scientific name is Cyanocitta cristata. | 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 blue jay's scientific name is Cyanocitta cristata. The first word of its scientific name is Cyanocitta.
Goura scheepmakeri is in the genus Goura. The first word of its scientific name is Goura. So, Goura scheepmakeri and Cyanocitta cristata are not in the same genus.
Larus livens is in the genus Larus. The first word... | |
Not supported with pagination yet | Which object has less thermal energy? | [
"a 10-kilogram block of iron at a temperature of 345°F",
"a 10-kilogram block of iron at a temperature of 370°F"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | The two blocks of iron have the same mass but different temperatures. Since the 345°F block is colder than the 370°F block, it has less thermal energy. |
What is the capital of Oklahoma? | [
"Oklahoma City",
"Tulsa",
"Tallahassee",
"Frankfort"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | |||
Which material is this box made of? | [
"porcelain",
"cardboard"
] | 1 | closed choice | grade2 | 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 box.
The box is made of cardboard.
Cardboard is made from wood pulp. Cardboard is usually brown because wood pulp is brown. | ||
Which of these states is farthest east? | [
"Iowa",
"Oklahoma",
"Wyoming",
"Nevada"
] | 0 | 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. Iowa is farthest east. | ||
Which of the following could Sanjay's test show? | [
"how well the weather station would work when it was windy",
"if the weather station would work when the temperature was 50°C"
] | 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... | ||
Not supported with pagination yet | Complete the sentences.
The Sixth Amendment talks about criminal trials. It says that anyone charged with a crime has a right to get help from a lawyer. It also says that all criminal trials must be () and (). | [
"long . . . private",
"speedy . . . public",
"cheap . . . easy",
"secret . . . safe"
] | 1 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | The Sixth Amendment says that anyone charged with a crime has a right to get help from a lawyer. It also says that all criminal trials must be speedy and public. Speedy means that the government must be ready for the trial as quickly as possible. A judge can decide that the government is taking too long. If that happen... | ||
Not supported with pagination yet | Which closing is correct for a letter? | [
"yours truly,\nBrandon",
"Yours truly,\nBrandon"
] | 1 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Franklin noticed that the wind was blowing in from the ocean this afternoon. | [
"climate",
"weather"
] | 1 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Franklin noticed that the wind was blowing in from the ocean this afternoon.
This passage tells you about the wind direction where Franklin was this afternoon. It describes the atmosphere at a certain place and time. So, this passage describes the weather. |
Which state is highlighted? | [
"Arizona",
"Washington",
"Utah",
"New Mexico"
] | 0 | closed choice | grade5 | social science | geography | States | Identify the 50 states | This state is Arizona. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
Did you know that raspberry-flavored candy used to be made with a liquid secreted by beavers? Candy used to be so much healthier than it is now. | [
"appeal to nature: the assumption that natural things are always good",
"circular reasoning: an argument that supports a claim with the claim itself",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences"
] | 0 | closed choice | grade10 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that candy flavored by beaver secretions is healthier. However, a candy isn't necessarily healthy just because it's naturally flavored. This illustrates a type of logical fallacy known as an appeal to nature. | |
Not supported with pagination yet | Based on this information, what is Truffle's phenotype for the fur texture trait? | [
"straight fur",
"Ff"
] | 0 | In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele F is for straight fur, and the allele f is for wavy fur.
Truffle, a Syrian hamster from this group, has straight fur. Truffle has one allele for strai... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Truffle's observable version of the fur texture trait is straight fur. So, Truffle's phenotype for the fur texture trait is straight fur. |
Not supported with pagination yet | Which is a compound sentence? | [
"Spiders have eight legs, but insects have only six.",
"Every morning my alarm clock wakes me at six o'clock."
] | 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 but.
Spiders have eight legs, but insects have only six. | |
What is the capital of Rhode Island? | [
"Indianapolis",
"Newport",
"Providence",
"Charleston"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Is the following statement about our solar system true or false?
Three-quarters of the planets are larger than Venus. | [
"false",
"true"
] | 0 | Use the data to answer the question below. | true-or false | grade6 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | The table tells you that there are five planets larger than Venus: Earth, Jupiter, Saturn, Uranus, and Neptune. There are eight planets total. Five-eighths is less than three-quarters. So, five-eighths of the planets are larger than Venus. | |
Not supported with pagination yet | Based on this information, what is this fly's phenotype for the antenna type trait? | [
"mutated antennae",
"normal antennae"
] | 0 | This passage describes the antenna type trait in fruit flies:
In a group of fruit flies, some individuals have mutated antennae and others have normal antennae. In this group, the gene for the antenna type trait has two alleles. The allele for normal antennae (a) is recessive to the allele for mutated antennae (A).
A ... | closed choice | grade8 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine the fruit fly's phenotype for the antenna type trait. First, consider the alleles in the fly's genotype for the antenna type gene. Then, decide whether these alleles are dominant or recessive.
The allele for normal antennae (a) is recessive to the allele for mutated antennae (A). This means A is a... |
Not supported with pagination yet | Which object has more thermal energy? | [
"a 2-kilogram block of copper at a temperature of 245°F",
"a 2-kilogram block of copper at a temperature of 215°F"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both ... | The two blocks of copper have the same mass but different temperatures. Since the 245°F block is hotter than the 215°F block, it has more thermal energy. |
Not supported with pagination yet | What information supports the conclusion that Tommy inherited this trait? | [
"Tommy and his father both have short hair.",
"Tommy's parents were born with straight hair. They passed down this trait to Tommy."
] | 1 | Read the description of a trait.
Tommy has straight hair. | 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... | |
Not supported with pagination yet | Select the animal that does not have a backbone. | [
"luna moth",
"American crocodile"
] | 0 | Hint: Insects, spiders, and worms do not 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... | An American crocodile is a reptile. Like other reptiles, an American crocodile has a backbone.
A luna moth is an insect. Like other insects, a luna moth does not have a backbone. It has a hard outer cover. |
Is cake batter a solid, a liquid, or a gas? | [
"a gas",
"a solid",
"a liquid"
] | 2 | closed choice | grade4 | natural science | physics | States of matter | Identify and sort solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Cake batter is a liquid. A liquid takes the shape of any container it is in.
If you pour cake batter into a different container, the cake batter will take the shape of that container. But the cake batter will still take up the same amount of space. | ||
Not supported with pagination yet | What is the mass of a school bus? | [
"12 ounces",
"12 tons",
"12 pounds"
] | 1 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a school bus is 12 tons.
12 ounces and 12 pounds are both too light. |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear ms. ryan,",
"Dear Ms. Ryan,"
] | 1 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Ms. Ryan is capitalized because it is a proper noun. | |
Which of these states is farthest north? | [
"North Carolina",
"Texas",
"Maryland",
"Alabama"
] | 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. Maryland is farthest north. | ||
Not supported with pagination yet | How long is a bench? | [
"12 yards",
"12 feet",
"12 miles",
"12 inches"
] | 1 | Select the best estimate. | closed choice | grade6 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a bench is 12 feet.
12 inches is too short. 12 yards and 12 miles are too long. |
Not supported with pagination yet | Would you find the word beets on a dictionary page with the following guide words?
birthday - bounty | [
"yes",
"no"
] | 1 | 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 beets is not between the guide words birthday - bounty, it would not be found on that page. | |
Not supported with pagination yet | Which correctly shows the title of a poem? | [
"\"Talk to Animals\"",
"Talk to Animals"
] | 0 | closed choice | grade6 | 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, article, or short story should be in quotation marks.
"You Are My Sunshine" | A poem should be in quotation marks.
The correct title is "Talk to Animals." | |
Which of these states is farthest north? | [
"Arizona",
"Maryland",
"Florida",
"Mississippi"
] | 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 north arrow is pointing. Maryland is farthest north. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
blew - bud | [
"boil",
"bake"
] | 0 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since boil is between the guide words blew - bud, it would be found on that page. | |
Which country is highlighted? | [
"Tuvalu",
"Fiji",
"Tonga",
"Kiribati"
] | 0 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tuvalu. | |||
What can Lacey and Rose trade to each get what they want? | [
"Rose can trade her broccoli for Lacey's oranges.",
"Lacey can trade her tomatoes for Rose's carrots.",
"Lacey can trade her tomatoes for Rose's broccoli.",
"Rose can trade her almonds for Lacey's tomatoes."
] | 2 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Lacey and Rose open their lunch boxes in the school cafeteria. Neither Lacey nor Rose got everything that they wanted. The table ... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Lacey wants broccoli. Rose wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
Which month is the hottest on average in Adelaide? | [
"January and February",
"September and October",
"June, July, and August"
] | 0 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | To describe the average temperature trends in Adelaide, look at the graph.
Choice "Feb" is incorrect.
Choice "Jun" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Sep" is incorrect.
Choice "Oct" is incorrect.
Choice "Jan" is incorrect.
The average temperatures in January and February are jus... | ||
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 1.",
"The magnetic force is stronger 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 | 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. | 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 | Suppose Jill decides to buy a copy of the book. Which result would be a cost? | [
"Jill will get to keep the book as long as she wants.",
"Jill will spend money to buy the book."
] | 1 | Jill is deciding whether to buy a copy of a book or borrow it from the library. She would like to be able to keep the book as long as she wants, but buying the book would cost money. She could borrow the book for free, but she would have to return it in a few weeks. | closed choice | 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 Jill wants or needs:
Jill will spend money to buy the book. |
Not supported with pagination yet | What kind of sentence is this?
Does Sasha prefer pizza or pasta? | [
"imperative",
"interrogative"
] | 1 | closed choice | grade5 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence asks something, and it ends with a question mark. It is an interrogative sentence. | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The elaborate monument () the attention of everyone who came near it. | [
"got",
"demanded"
] | 1 | closed choice | grade10 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the word demanded. It describes the monument as if it were a bossy, demanding person. | |
Select the organism in the same genus as the common toad. | [
"Bufo bufo",
"Hyla japonica",
"Lithobates catesbeianus"
] | 0 | This organism is a common toad. Its scientific name is Bufo bufo. | closed choice | grade5 | 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 common toad's scientific name is Bufo bufo. The first word of its scientific name is Bufo.
Lithobates catesbeianus is in the genus Lithobates. The first word of its scientific name is Lithobates. So, Lithobates catesbeianus and Bufo bufo are not in the same genus.
This organism and the common toad are in the same gen... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Mateo's room is as tidy as an overgrown garden. | [
"verbal irony",
"onomatopoeia"
] | 0 | closed choice | grade6 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
As tidy as an overgrown garden shows verbal irony because an overgrown garden is not tidy. | |
Not supported with pagination yet | Which object has less thermal energy? | [
"a 3-kilogram block of iron at a temperature of 275°F",
"a 3-kilogram block of iron at a temperature of 270°F"
] | 1 | The objects are identical except for their temperatures. | closed choice | grade3 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | The two blocks of iron have the same mass but different temperatures. Since the 270°F block is colder than the 275°F block, it has less thermal energy. |
Not supported with pagination yet | What do these two changes have in common?
silver jewelry tarnishing
baking cookies | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are chemical changes.",
"Both are caused by cooling."
] | 2 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Metal turning less shiny over time is called tarnishing. Silver jewelry tarnishing is a chemical change. The silver reacts with sulfur in the air to form black tarnish. The tarnish is a different type of matter that was not there before the change.
Baking cookies is a chemical change. T... | |
Not supported with pagination yet | Which text message is more formal? | [
"Heads up! Lane is here. In the lobby.",
"Ms. Lane is already here. She's waiting in the lobby."
] | 1 | closed choice | grade10 | 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 text message is more formal. It uses complete sentences, avoids slang (heads up), and uses the person's title (Ms. Lane). The other text message includes more casual language and sentence fragments. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Senator Tyler announced today that she plans to cut funding to early childhood education programs. The last thing we need is a government official who hates children! | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"appeal to nature: the assumption that natural things are always good"
] | 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 Senator Tyler hates children, because she wants to cut education funding. However, the fact that Senator Tyler wants to cut education funding doesn't necessarily suggest that she hates children. This illustrates a type of logical fallacy known as a straw man. | |
Not supported with pagination yet | Which word is not like the others? | [
"day",
"week",
"school",
"year"
] | 2 | closed choice | grade1 | language science | vocabulary | Categories | Which word is not like the others? | Some words are alike. They go together in a group.
Red, blue, and green go together. They are colors.
Mom, dad, grandma, and grandpa go together. They are people in a family. | Day, year, and week go together. They are time words. School is not a time word, so it is not like the other words. | |
Which animal is also adapted to be camouflaged in the snow? | [
"polar bear",
"Grant's gazelle"
] | 0 | Ptarmigans live in cold, snowy places. The is adapted to be camouflaged in the snow.
Figure: ptarmigan. | 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 ptarmigan.
During the winter, the ptarmigan has white feathers covering its body. It is adapted to be camouflaged in the snow. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The polar bear has white fur covering its body. It i... | |
What is the capital of Hawaii? | [
"Phoenix",
"Olympia",
"Hilo",
"Honolulu"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | What do these two changes have in common?
burning a candle
sauce burning on a stove | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating."
] | 2 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Burning a candle is a chemical change. Both the wick and the melted wax burn. They react with oxygen in the air and turn into soot, carbon dioxide, and water.
Sauce burning on a stove is a chemical change. High temperatures case the sauce to react with oxygen in the air. The sauce turns... | |
Not supported with pagination yet | Compare the motion of two ships. Which ship was moving at a higher speed? | [
"a ship that moved 185miles in 5hours",
"a ship that moved 85miles in 5hours"
] | 0 | closed choice | grade2 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the mile.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects movi... | Look at the distance each ship moved and the time it took to move that distance.
One ship moved 185 miles in 5 hours.
The other ship moved 85 miles in 5 hours.
Notice that each ship spent the same amount of time moving. The ship that moved 185 miles moved a farther distance in that time. So, that ship must have moved a... | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"Sleeping through the rooster's crowing was no problem," Bruce joked with a yawn. | [
"Bruce slept poorly.",
"Bruce slept well."
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Sleeping through the rooster's crowing was no problem ironically suggests that Bruce slept poorly. Bruce was tired, so the rooster's crowing was clearly a problem. | |
Not supported with pagination yet | Would you find the word done on a dictionary page with the following guide words?
detective - drum | [
"yes",
"no"
] | 0 | yes or no | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since done is between the guide words detective - drum, it would be found on that page. | |
Which of these states is farthest south? | [
"Texas",
"Ohio",
"Washington",
"Utah"
] | 0 | 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 south arrow is pointing. Texas is farthest south. | ||
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Algeria.
The coast of Algeria is often cloudy during the wet winter months of December, January, and February.
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 coast of Algeria is often cloudy during the wet winter months of December, January, and February.
This passage tells you about the usual pattern of cloud cover on the coast of Algeria. This passage does not describe what the weather is like on a particular day. So, this passage describes... | |
What is the capital of Hawaii? | [
"Jefferson City",
"Hilo",
"Honolulu",
"Topeka"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | |||
Select the bird below. | [
"barn owl",
"helmeted iguana"
] | 0 | Birds have feathers, two wings, and a beak. A bald eagle is an example of a bird. | 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 barn owl is a bird. It has feathers, two wings, and a beak.
A helmeted iguana is a reptile. It has scaly, waterproof skin. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The 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. | |
Not supported with pagination yet | Which type of sentence is this?
Lester took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | [
"compound",
"complex",
"simple",
"compound-complex"
] | 2 | closed choice | grade9 | 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 simple. It is a single independent clause.
Lester took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | |
Not supported with pagination yet | How long is a soccer field? | [
"110 kilometers",
"110 meters",
"110 centimeters",
"110 millimeters"
] | 1 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a soccer field is 110 meters.
110 millimeters and 110 centimeters are too short. 110 kilometers is too long. |
Select the organism in the same genus as the blue jay. | [
"Cyanocitta cristata",
"Ardea cocoi",
"Hystrix cristata"
] | 0 | This organism is a blue jay. Its scientific name is Cyanocitta cristata. | 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... | A blue jay's scientific name is Cyanocitta cristata. The first word of its scientific name is Cyanocitta.
Hystrix cristata and Cyanocitta cristata are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Hystrix cristata and Cyanocitta cristata have the same ... | |
What is the name of the colony shown? | [
"Massachusetts",
"New York",
"New Jersey",
"Pennsylvania"
] | 2 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New Jersey. | |||
Select the organism in the same species as the black howler. | [
"Alouatta caraya",
"Ovis orientalis",
"Lontra canadensis"
] | 0 | This organism is a black howler. Its scientific name is Alouatta caraya. | 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 black howler's scientific name is Alouatta caraya.
Ovis orientalis does not have the same scientific name as a black howler. So, Alouatta caraya and Ovis orientalis are not in the same species.
Lontra canadensis does not have the same scientific name as a black howler. So, Alouatta caraya and Lontra canadensis are no... | |
Not supported with pagination yet | Last year, there were seven men's clothing stores on Main Street in Manchester. This year, there are only three. What probably happened to the overall supply of men's shirts in Manchester? | [
"The supply probably went down.",
"The supply probably went up."
] | 0 | closed choice | grade7 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | When four men's clothing stores closed on Main Street, the number of suppliers went down. There were fewer stores selling men's shirts. So, the supply of men's shirts probably went down. | |
Is the following statement about our solar system true or false?
The volume of Mars is more than ten times as large as Mercury's. | [
"false",
"true"
] | 0 | 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 determine if this statement is true, calculate the value of ten times the volume of Mercury.
Then compare the result to the volume of Mars. The volume of Mars is 1.63 x 10^11 km^3, which is less than 6.08 x 10^11 km^3. So, the volume of Mars is less than ten times as large as Mercury's. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade2 | 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 north pole of one magnet is closest to the south pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Based on this information, what is Koko's phenotype for the body feather color trait? | [
"bb",
"blue body feathers"
] | 1 | In a group of budgerigar parakeets, some individuals have green body feathers and others have blue body feathers. In this group, the gene for the body feather color trait has two alleles. The allele B is for green body feathers, and the allele b is for blue body feathers.
Koko, a budgerigar parakeet from this group, ha... | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Koko's observable version of the body feather color trait is blue body feathers. So, Koko's phenotype for the body feather color trait is blue body feathers. |
Not supported with pagination yet | Which body part gives the body its shape? | [
"stomach",
"skeleton",
"lungs"
] | 1 | closed choice | grade2 | natural science | biology | Animals | Body parts and their functions | |||
Not supported with pagination yet | Does this passage describe the weather or the climate?
Edinburgh, Scotland, has warm summers and cold winters. | [
"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 | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Edinburgh, Scotland, has warm summers and cold winters.
This passage tells you about the usual temperatures in Edinburgh. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | How long is an ice skate? | [
"27 kilometers",
"27 centimeters",
"27 meters"
] | 1 | Select the best estimate. | closed choice | grade5 | 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.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of an ice skate is 27 centimeters.
27 meters and 27 kilometers are both too long. |
Not supported with pagination yet | What do these two changes have in common?
compost rotting
burning a piece of wood | [
"Both are caused by heating.",
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are only physical changes."
] | 1 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Compost forms from the remains of plants and animals, such as vegetable scraps and egg shells. Compost rotting is a chemical change. As the compost rots, it breaks down and turns into a different type of matter.
Burning a piece of wood is a chemical change. When the wood burns, the type... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Dr. Barton 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. | |
What is the capital of Arkansas? | [
"Athens",
"Raleigh",
"Little Rock",
"Tallahassee"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Which continent is highlighted? | [
"Europe",
"Australia",
"South America",
"North America"
] | 2 | closed choice | grade5 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is South America. | ||
Not supported with pagination yet | Would you find the word crooked on a dictionary page with the following guide words?
company - curious | [
"no",
"yes"
] | 1 | yes or no | 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 crooked is between the guide words company - curious, it would be found on that page. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Peru's coast is the least interesting part of the country.",
"A narrow strip of desert runs along Peru's coastline."
] | 1 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or fe... | The first sentence states a fact.
A narrow strip of desert runs along Peru's coastline.
It can be proved by looking up Peru's geography.
The second sentence states an opinion.
Peru's coast is the least interesting part of the country.
Least interesting shows what a person believes, thinks, or feels. Another person migh... | |
Which country is highlighted? | [
"Grenada",
"Haiti",
"Saint Vincent and the Grenadines",
"Saint Lucia"
] | 2 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Vincent and the Grenadines. | |||
Not supported with pagination yet | What information supports the conclusion that Cindy acquired this trait? | [
"Cindy learned biology by reading, observing, and experimenting.",
"Cindy is most interested in human biology."
] | 0 | Read the description of a trait.
Cindy 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... | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
My dog, Bandit, is the security guard for our front yard mailbox. | [
"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... | My dog, Bandit, is the security guard for our front yard mailbox.
The words Bandit and security guard are compared without the word like or as. So, the sentence uses a metaphor. | |
Which of the following could Chase's test show? | [
"if the sample fabric would absorb one drop of water in less than one second",
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"how much athletes would sweat in the fabric"
] | 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 | grade8 | 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... | ||
What is the expected ratio of offspring with normal wings to offspring with vestigial wings? Choose the most likely ratio. | [
"3:1",
"0:4",
"2:2",
"4:0",
"1:3"
] | 1 | This passage describes the wing type trait in fruit flies:
Some scientists breed fruit flies to learn how traits are inherited. These scientists often use flies with vestigial wings, which are shorter and stubbier than normal wings. Fruit flies with vestigial wings cannot fly, so they are easier for scientists to handl... | 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 normal wings or vestigial wings, consider whether each phenotype is the dominant or recessive allele's version of the wing type trait. The question tells you that the N allele, which is for normal wings, is dominant over the n allele, which is f... | |
Not supported with pagination yet | What do these two changes have in common?
a piece of pear turning brown
salt and vinegar removing tarnish from a penny | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 3 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
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... | |
Which material are these blocks made of? | [
"rock",
"wood"
] | 1 | closed choice | grade2 | 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 blocks.
The toy blocks are made of wood. | ||
Not supported with pagination yet | Which correctly shows the title of a song? | [
"\"Farmer in the Dell\"",
"\"Farmer in the dell\""
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The words in and the are not important, so they should not be capitalized.
The correct title is "Farmer in the Dell." | |
Not supported with pagination yet | Which is the softest? | [
"nylon swim shorts",
"glass bottle",
"clay tile"
] | 0 | closed choice | grade4 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Soft is a property. A soft material changes shape when pressed or squeezed.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the nylon swim shorts are the softest. Nylon fabric changes shape when you press on it. | |
Not supported with pagination yet | Which is more flexible? | [
"ice rink",
"leather belt"
] | 1 | closed choice | grade3 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Flexible is a property. A flexible material can be bent without breaking easily.
Look at each picture, one at a time. Imagine bending the material shown in each picture.
Of the choices, the leather belt is more flexible. If you fold leather, it will not break. | |
What is the capital of Oregon? | [
"Salem",
"Portland",
"Providence",
"Denver"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Salem is the capital of Oregon. | |||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is weaker in Pair 1.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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 farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Celestine is a pure substance. It is not made by living things.",
"A brick is made by humans. It is a solid.",
"Halite is a solid. It is not made by living things."
] | 1 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Halite is a mineral.
Celestine is a mineral.
A brick is made by humans. But minerals are not made by living things.
So, a brick is not a mineral. | |
Which animal's feet are also adapted to walk on snow and ice? | [
"Eurasian lynx",
"tokay gecko"
] | 0 | Snow leopards live in the snowy mountains of central Asia. The 's feet are adapted for walking on snow and ice.
Figure: snow leopard. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | 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 feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the snow leopard.
The snow leopard has furry feet with large pads. Its feet are adapted to walk on snow and ice. The fur can help keep the snow leopard's feet warm. The large pads help spread its weight over a larger area. This allows it to walk on ice without slipping and to walk on snow without... | |
Which bird's beak is also adapted to filter through mud? | [
"ringed teal",
"Alexandrine parakeet"
] | 0 | Canada geese eat invertebrates and plants that live near water. The shape of the 's beak is adapted to filter through mud for food.
The gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the goose's beak.
Figure: Canada goose. | closed choice | grade4 | 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 a bird's beak is one example of an adaptation. Birds' beaks can be adapted in different ways. For example, a sharp hooked beak might help a bird tear through meat easily. ... | Look at the picture of the Canada goose.
The Canada goose has a wide, flat beak. Its beak is adapted to filter through mud. The Canada goose gathers muddy water in its beak. Then, it pushes the water out through gaps along the sides of the beak. Bits of food, such as plant roots, are left behind inside the goose's beak... | |
Not supported with pagination yet | What does the metaphor in this text suggest?
Ayana felt a roller coaster of emotions when she heard the news. | [
"Ayana had varied feelings.",
"Ayana found the news scary."
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A metaphor compares two things that are not actually alike without using like or as.
The snow formed a blanket over the town. | The text uses a metaphor, comparing two things that are not actually alike without using like or as.
The metaphor Ayana felt a roller coaster of emotions suggests that Ayana had varied feelings. A roller coaster has a dramatic mix of ups and downs, and so do Ayana's feelings. |
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.