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Not supported with pagination yet | Complete the statement.
Ferrous oxide is (). | [
"an elementary substance",
"a compound"
] | 1 | Ferrous oxide makes up about 10% of the mantle, one of the layers beneath Earth's surface. The chemical formula for ferrous oxide is FeO. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | You can tell whether ferrous oxide is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for ferrous oxide, FeO, contains two ato... |
Select the amphibian below. | [
"poison dart frog",
"clownfish"
] | 0 | 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 clownfish is a fish. It lives underwater. It has fins, not limbs.
Clownfish live with animals called anemones. In the image of the clownfish, you can see the brown anemone surrounding the clownfish.
A poison dart frog is an amphibian. It has moist skin and begins its life in water.
Poison dart frogs come in many brig... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The violinist made his instrument () the haunting melody. | [
"produce",
"cry out"
] | 1 | closed choice | grade9 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the phrase cry out. It describes the violin as if it were a crying person. | |
Not supported with pagination yet | Based on this information, what is Hoppy's phenotype for the eye color trait? | [
"red eyes",
"brown eyes"
] | 1 | In a group of guinea pigs, some individuals have brown eyes and others have red eyes. In this group, the gene for the eye color trait has two alleles. The allele for red eyes (e) is recessive to the allele for brown eyes (E).
Hoppy is a guinea pig from this group. Hoppy has the homozygous genotype EE for the eye color ... | closed choice | grade7 | 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 ... | Hoppy's genotype for the eye color gene is EE. Hoppy's genotype of EE has only E allelles. The E allele is for brown eyes. So, Hoppy's phenotype for the eye color trait must be brown eyes.
To check this answer, consider whether Hoppy's alleles are dominant or recessive. The allele for red eyes (e) is recessive to the a... |
Not supported with pagination yet | Select the description that doesn't belong. | [
"adult",
"child",
"aunt",
"teen"
] | 2 | closed choice | grade3 | language science | vocabulary | Categories | Select the words that don't belong | Aunt doesn't belong.
Child, teen, and adult all describe stages of life. | ||
Not supported with pagination yet | What kind of sentence is this?
In traditional Indian culture, it is customary for men to wear a dhoti, a piece of cloth tied around the waist and legs. | [
"declarative",
"exclamatory",
"interrogative"
] | 0 | closed choice | grade6 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
What is the capital of New Mexico? | [
"Santa Fe",
"Albuquerque",
"Denver",
"Helena"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | |||
Select the fish below. | [
"salmon",
"bison"
] | 0 | Fish live underwater. They have fins, not limbs. A clownfish is an example of a fish. | 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 bison is a mammal. It has fur and feeds its young milk.
A salmon is a fish. It lives underwater. It has fins, not limbs. | |
Identify the question that Leo's experiment can best answer. | [
"Do steel nails rust in fewer days when submerged in a large volume of liquid compared to a small volume?",
"Do steel nails take fewer days to rust in water compared to vinegar?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Leo put one two-inch steel nail into each of six test tubes. He added water to three of the test tubes and vinegar to the other three. In each test tube, he completely covered the nail with the same volume of liquid. Le... | 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... | ||
What is the capital of Colorado? | [
"Boise",
"Colorado Springs",
"Denver",
"Boulder"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Denver is the capital of Colorado. | |||
Not supported with pagination yet | What is the mass of an eraser? | [
"35 grams",
"35 kilograms"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an eraser is 35 grams.
35 kilograms is too heavy. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
geese - gun | [
"grateful",
"gave"
] | 0 | closed choice | grade2 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since grateful is between the guide words geese - gun, it would be found on that page. | |
Not supported with pagination yet | Which sentence is more formal? | [
"More than fifteen million people in the world don't live on any continent.",
"More than fifteen million people in the world do not live on any continent."
] | 1 | closed choice | grade5 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses a contraction (don't).
The first sentence does not use a contraction, so it is more formal. | |
Not supported with pagination yet | Select the one true statement. | [
"Chloroplasts are outside the nucleus of a plant cell.",
"The cell membrane breaks down sugar to release energy that an animal cell can use.",
"The mitochondria of a plant cell use sunlight to make sugar."
] | 0 | closed choice | grade8 | natural science | biology | Cells | Compare cells and cell parts | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
"Jack's personality is very Jekyll and Hyde," Akira told her brother. | [
"a song",
"literature"
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Jekyll and Hyde is literature.
Robert Louis Stevenson's popular Victorian novella Dr. Jekyll and Mr. Hyde tells the story of a man with two distinct personalities. Known to the world as a kind and highly respected doctor, at night he transforms into a monstrous person.
The allusion Jekyll and... | |
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. | |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her word choice?
I saw a movie called Blob Invasion. It was really good. It was about a weird guy who was into science. He worked on bugs and small animals. He made a machine that did things to the bugs and the animals. They became ... | [
"by using more specific language",
"by reducing repetitive language"
] | 0 | closed choice | grade10 | 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 word choice by using more specific language.
For example, the writer could replace the underlined text with more specific language, such as incredibly entertaining, strange scientist, experimented, invented, transformed, giant slimy blobs, morphed into, giant, oozed, horrible, a... | |
Which solution has a higher concentration of purple particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 2 | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container.
Use the concentration formula to find the number of purple particles per mill... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater 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 | 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 1 than in Pair 2. So, the magnitud... | |
Identify the question that Caleb's experiment can best answer. | [
"Do cardinals visit feeders containing sunflower seeds more often than feeders containing flax seeds?",
"Do cardinals eat more seeds per visit from feeders containing sunflower seeds compared to feeders containing flax seeds?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Caleb set up five pairs of platform bird feeders around his yard. He filled one feeder in each pair with sunflower seeds and the other feeder with flax seeds. For one week, Caleb watched cardinals visiting the feeders d... | 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 | What does the simile in this text suggest?
At an annual festival in Turkey, whirling dervishes practice a tradition of spinning like tops to commemorate the teachings of one of their spiritual leaders. | [
"The dancers rotate rapidly.",
"The dancers move like children."
] | 0 | 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 simile uses like or as to compare two things that are not actually alike.
The cat's fur was as dark as the night. | The text includes a simile, using like or as to compare two things that are not actually alike.
The simile spin like tops suggests that the dancers rotate rapidly. A top rotates rapidly around a center. | |
Not supported with pagination yet | Select the animal. | [
"Loons walk, fly, and swim.",
"Basil has green leaves.",
"Maple trees have star-shaped leaves.",
"Mango trees have many leaves."
] | 0 | closed choice | grade3 | 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 maple tree is a plant. It has star-shaped leaves.
Maple trees have green leaves in the spring and summer. In the fall, their leaves turn yellow, red, or brown.
A mango tree is a plant. It has many green leaves.
Mango trees can grow to over 100 feet tall!
A loon is an animal. It walks, flies, and swims.
A loon is a bi... | |
What is the capital of Utah? | [
"Salt Lake City",
"Provo",
"Santa Fe",
"Newark"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Salt Lake City is the capital of Utah. | |||
Not supported with pagination yet | Which correctly shows the title of a book? | [
"***The One and Only Ivan***",
"\"The One and Only Ivan\""
] | 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 book should be in italics.
The correct title is **The One and Only Ivan**. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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,... | Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magnitude of the magnetic force between them is greater.
There is a smaller distance between the magnets in Pair 1 than in Pair 2. So, the magnitude of the magnetic force is greater in Pair 1 than in Pair 2. | |
Not supported with pagination yet | Compare the motion of two ducks. Which duck was moving at a lower speed? | [
"a duck that moved 315miles in 5hours",
"a duck that moved 285miles in 5hours"
] | 1 | 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 duck moved and the time it took to move that distance.
One duck moved 285 miles in 5 hours.
The other duck moved 315 miles in 5 hours.
Notice that each duck spent the same amount of time moving. The duck that moved 285 miles moved a shorter distance in that time. So, that duck must have moved ... | |
Select the chemical formula for this molecule. | [
"IC",
"I2Cl2",
"ICl",
"I2C2"
] | 2 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Match chemical formulas to ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | I is the symbol for iodine. Cl is the symbol for chlorine. This ball-and-stick model shows a molecule with one iodine atom and one chlorine atom.
The chemical formula will contain the symbols I and Cl. There is one iodine atom, so I will not have a subscript. There is one chlorine atom, so Cl will not have a subscript.... | ||
Not supported with pagination yet | What do these two changes have in common?
rust forming on a metal gate
plants making food from sunlight, air, and water | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes.",
"Both are only physical changes."
] | 2 | 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.
Rust forming on a metal gate is a chemical change. As the gate rusts, the metal turns into a different type of matter called rust. Rust is reddish-brown and falls apart easily.
Plants making food is a chemical change. Plants use energy from sunlight to change air and water into food. Th... | |
What is the capital of Montana? | [
"Helena",
"Missoula",
"Billings",
"Olympia"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Helena is the capital of Montana. | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Gabe's research on nineteenth-century philosophers led him down the rabbit hole. | [
"Greek mythology",
"literature"
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion down the rabbit hole is literature.
Lewis Carroll's Alice's Adventures in Wonderland tells the story of a young girl who follows a white rabbit down a rabbit hole and finds herself in a series of adventures in a surreal world.
The allusion down the rabbit hole means on a strange or difficult ... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Rachel used an old broom to clean up the broken glass before throwing it away.",
"Rachel used an old broom to clean up the broken glass before throwing the broken glass away."
] | 0 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun it could refer to the old broom or the broken glass.
The second answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the broken glass.
Rachel used an old broom to clean up the broken glass before thro... | |
Which specific humidity level was measured within the outlined area shown? | [
"4 grams of water vapor per kilogram of air",
"10 grams of water vapor per kilogram of air",
"14 grams of water vapor per kilogram of air"
] | 0 | The map below shows humidity in the lower atmosphere on May 3, 2013. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in North America on that day.
Look at the map. Then, answer the question below.
Data source: United Sta... | closed choice | grade7 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show specific humidity, a measurement of the amount of water vapor in the air.
The map's legend tells you the specific humidity level that each color represents. Colors on the left in th... | Look at the colors shown within the outlined area. Then, use the legend to determine which specific humidity levels those colors represent.
The legend tells you that this air mass contained air with specific humidity levels between 0 and 6 grams of water vapor per kilogram of air.
4 grams of water vapor per kilogram of... | |
Select the amphibian below. | [
"Galapagos giant tortoise",
"American toad"
] | 1 | Amphibians have moist skin and begin their lives in water. A Japanese tree frog is an example of an amphibian. | 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. | An American toad is an amphibian. It has moist skin and begins its life in water.
A Galapagos giant tortoise is a reptile. It has scaly, waterproof skin. | |
Not supported with pagination yet | Which tense does the sentence use?
The parents named the baby after his grandpa. | [
"future tense",
"present tense",
"past tense"
] | 2 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in past tense. You can tell because it uses a past-tense verb, named. The verb ends in -ed and tells you about something that has already happened. | |
What is the capital of New Mexico? | [
"Olympia",
"Albuquerque",
"Concord",
"Santa Fe"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Santa Fe is the capital of New Mexico. | |||
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each salmon",
"each salmon . . . the surroundings"
] | 0 | Tyler lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each salmon increased, which means that the thermal energy of each salmon increased. So, thermal energy was transferred from the surroundings to each salmon. | |
What can Dwayne and Madelyn trade to each get what they want? | [
"Dwayne can trade his tomatoes for Madelyn's broccoli.",
"Madelyn can trade her almonds for Dwayne's tomatoes.",
"Madelyn can trade her broccoli for Dwayne's oranges.",
"Dwayne can trade his tomatoes for Madelyn's carrots."
] | 0 | 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.
Dwayne and Madelyn open their lunch boxes in the school cafeteria. Neither Dwayne nor Madelyn got everything that they wanted. Th... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Dwayne wants broccoli. Madelyn 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. | ||
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"Ed seemed to know a lot about African wildlife, but it turned out that his knowledge was mostly based on factoids gleaned from unreliable websites.",
"Ed subscribed to an online newsletter about African wildlife; he enjoyed receiving daily factoids about the wild animals' natural habitats and behavior."
] | 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.
Ed seemed to know a lot about African wildlife, but it turned out that his knowledge was mostly based on factoids gleaned from unreliable websites.
The first text uses factoid in its nontraditional sense: a trivial but tr... | |
Which ocean is highlighted? | [
"the Pacific Ocean",
"the Atlantic Ocean",
"the Southern Ocean",
"the Arctic Ocean"
] | 3 | 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 ocean is highlighted? | [
"the Indian Ocean",
"the Arctic Ocean",
"the Atlantic Ocean",
"the Southern Ocean"
] | 3 | 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 Southern Ocean.
The Southern Ocean reaches from the shores of Antarctica to 60° South latitude. | ||
Which continent is highlighted? | [
"Europe",
"Africa",
"South America",
"Antarctica"
] | 0 | closed choice | grade8 | social science | geography | Physical Geography | 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 Europe. | ||
What is the capital of Arizona? | [
"Phoenix",
"Tucson",
"Honolulu",
"Juneau"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Phoenix is the capital of Arizona. | |||
Not supported with pagination yet | Suppose Tara decides to see the vultures. Which result would be a cost? | [
"Tara will enjoy seeing the vultures more than she would have enjoyed seeing the alligators.",
"Tara will spend more time walking to the vultures. They are on the other side of the zoo, but the alligators are close by."
] | 1 | Tara is deciding whether to see the vultures or the alligators at the zoo. She wants to see lots of animals, but the zoo is closing soon. | 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 Tara wants or needs:
Tara will spend more time walking to the vultures. They are on the other side of the zoo, but the alligators are close by. |
What is the capital of New Mexico? | [
"Albuquerque",
"Santa Fe",
"Trenton",
"Sacramento"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | |||
Which better describes the Shenandoah National Park ecosystem? | [
"It has warm, wet summers. It also has only a few types of trees.",
"It has cold, wet winters. It also has soil that is poor in nutrients."
] | 0 | Figure: Shenandoah National Park.
Shenandoah National Park is a temperate deciduous forest ecosystem in northern Virginia. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, Shenandoah National Park has warm, wet summers. It also has only a few types of trees. | |
What is the direction of this pull? | [
"toward his hand",
"away from his hand"
] | 0 | A man opens his car door. He uses a force to pull the door open with his hand. | closed choice | grade4 | natural science | physics | Force and motion | Identify directions of forces | A force is a push or a pull that one object applies to another. Every force has a direction.
The direction of a push is away from the object that is pushing.
The direction of a pull is toward the object that is pulling. | The man pulls open his car door. The direction of the pull is toward his hand. | |
Which property do these three objects have in common? | [
"transparent",
"rough",
"flexible"
] | 2 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A flexible object can be folded or bent without breaking easily. All three objects are flexible.
A rough object feels scratchy when you touch it. None of the objects are rough.
You can see clearly through a transparent object. None of the objects are... | |
Not supported with pagination yet | What information supports the conclusion that Robert inherited this trait? | [
"Robert's mother has blue eyes. She passed this trait down to Robert.",
"Robert likes to wear a blue sweater to match his blue eyes."
] | 0 | Read the description of a trait.
Robert has blue eyes. | closed choice | grade5 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"***The Elegant but Easy Cookbook***",
"\"The Elegant but Easy Cookbook\""
] | 0 | closed choice | grade9 | 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 book should be in italics.
The correct title is **The Elegant but Easy Cookbook**. | |
Not supported with pagination yet | What do these two changes have in common?
breaking a piece of glass
slicing cheese | [
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes.",
"Both are caused by cooling."
] | 2 | 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.
Breaking a piece of glass is a physical change. The glass gets broken into pieces. But each piece is still made of the same type of matter.
Slicing cheese is a physical change. The cheese changes shape. But it is still made of the same type of matter.
Step 2: Look at each answer choice.... | |
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 left than to the right",
"to the right than to the left"
] | 1 | The diagram below shows a solution with one solute. Each solute particle is represented by a pink 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 d... | 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... | |
Not supported with pagination yet | Which is the smoothest? | [
"asphalt road",
"rock wall",
"ceramic mug"
] | 2 | 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... | Smooth is a property. A smooth material is not rough or bumpy.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the ceramic mug is the smoothest. If you touch a piece of ceramic like this one, it will not feel rough. | |
Which statement describes the Taklamakan Desert ecosystem? | [
"It has year-round snow.",
"It has long, cold winters.",
"It has a medium amount of rain."
] | 1 | Figure: Taklamakan Desert.
The Taklamakan Desert is a cold desert ecosystem in northwestern China. Towns in this desert were stops along the Silk Road, a historical trade route between China and eastern Europe. | closed choice | grade8 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the following statement describes the Taklamakan Desert ecosystem: a small amount of rain or snow, dry, thin soil, and long, cold winters. It has long, cold winters... | |
Which solution has a higher concentration of purple particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container.
Use the concentration formula to find the number of purple particles per mill... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Why should I listen to your thoughts about lowering my cholesterol? You eat terribly, so what do you know? | [
"ad hominem: an attack against the person making the argument, rather than the argument itself",
"false causation: the assumption that because two things happened together, one caused the other",
"hasty generalization: a broad claim based on too few observations"
] | 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 an unhealthy eater isn't allowed to give advice on someone else's cholesterol. This is a personal attack that isn't relevant to whether the advice is valid. This illustrates a type of logical fallacy known as ad hominem. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average kinetic energy, sample B mus... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your friend,\nMichael",
"Your Friend,\nMichael"
] | 0 | closed choice | grade4 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
What is the capital of Arizona? | [
"Carson City",
"Tucson",
"Frankfort",
"Phoenix"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Phoenix is the capital of Arizona. | |||
Not supported with pagination yet | Choose the poem that uses anaphora. | [
"I looked and saw a sea\nroofed over with rainbows,\nIn the midst of each\ntwo lovers met and departed.",
"There are only myself and you in the world,\nThere are only myself and you;\n'Tis clear, then, that I unto you should be kind,\nAnd that you unto me should be true."
] | 1 | From H. Lavinia Baily, "Myself and You" and from Ezra Pound, "The Sea of Glass" | closed choice | grade9 | language science | reading-comprehension | Analyzing literature | Identify elements of poetry | Poets often use the sounds of words to create interesting effects and to express moods and emotions. Understanding these elements of poetry can help you better interpret and appreciate poetic forms.
Anaphora is the repetition of words or sequences of words at the beginning of multiple phrases, sentences, or lines.
Out ... | This poem uses anaphora. It repeats the same word or words at the beginning of multiple lines or phrases.
And that you unto me should be true. |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"That fits you well," Peter remarked after Devon's cap fell over her eyes for the tenth time. | [
"The cap was too big.",
"The cap looked nice on Devon."
] | 0 | closed choice | grade8 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
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.
Fits you well ironically suggests that the cap was too big. The cap was falling over Devon's eyes, so it didn't fit her well at all. | |
Which is this organism's scientific name? | [
"Bohadschia argus",
"leopard sea cucumber"
] | 0 | This organism is Bohadschia argus. It is also called a leopard sea cucumber. | closed choice | grade8 | 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,... | Bohadschia argus is written in italics. The first word is capitalized, and the second word is not.
So, Bohadschia argus is the scientific name. | |
Not supported with pagination yet | Which is stickier? | [
"honey",
"glass marbles"
] | 0 | closed choice | grade2 | 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. | Sticky is a property. A sticky material can stick to other things.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the honey is stickier. If you touch honey, it will stick to you. | |
Which continent is highlighted? | [
"Antarctica",
"Europe",
"Africa",
"Australia"
] | 0 | 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 Antarctica. | ||
Which solution has a higher concentration of pink particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
ladder - librarian | [
"lock",
"lecture"
] | 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 lecture is between the guide words ladder - librarian, it would be found on that page. | |
Not supported with pagination yet | Complete the sentence.
In this chemical reaction, potassium nitrate is a (). | [
"product",
"reactant"
] | 1 | This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
People have used gunpowder as an explosive for hundreds of years. Gunpowder is a mixture of three different substances: potassium nitrate, charcoal, and sulfur. When these substances are burned together, they release a la... | 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 potassium nitrate in this chemical reaction.
People have used gunpowder as an explosive for hundreds of years. Gunpowder is a mixture of three different substances: potassium nitrate, charcoal, and sulfur. When these substances are burned to... |
Not supported with pagination yet | What information supports the conclusion that Polly acquired this trait? | [
"Polly learned how to build a fire at summer camp.",
"Polly can cook food over a fire."
] | 0 | Read the description of a trait.
Polly knows how to build a fire. | 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 | Which correctly shows the title of a movie? | [
"alone in the woods",
"Alone in the Woods"
] | 1 | closed choice | grade3 | 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 Alone in the Woods. | |
Which better describes the Taklamakan Desert ecosystem? | [
"It has heavy snow. It also has soil that is frozen year-round.",
"It has dry, thin soil. It also has long, cold winters."
] | 1 | Figure: Taklamakan Desert.
The Taklamakan Desert is a cold desert ecosystem in northwestern China. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the Taklamakan Desert has dry, thin soil. It also has long, cold winters. | |
Not supported with pagination yet | Compare the motion of three sailboats. Which sailboat was moving at the lowest speed? | [
"a sailboat that moved 135kilometers west in 10hours",
"a sailboat that moved 105kilometers north in 10hours",
"a sailboat that moved 140kilometers south in 10hours"
] | 1 | closed choice | grade3 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects mov... | Look at the distance each sailboat moved and the time it took to move that distance. The direction each sailboat moved does not affect its speed.
Notice that each sailboat moved for 10 hours. The sailboat that moved 105 kilometers moved the shortest distance in that time. So, that sailboat must have moved at the lowest... | |
What is the capital of Mississippi? | [
"Biloxi",
"Frankfort",
"Jackson",
"Raleigh"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | |||
Not supported with pagination yet | What does the metaphor in this text suggest?
When Tucker lost his job, he was devastated. The only light in the sea of darkness was the prospect of pursuing a new career. | [
"There was a benefit to Tucker's job loss.",
"Having to pursue a new career was the worst part of Tucker's job loss."
] | 0 | 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 the only light in the sea of darkness was the prospect of pursuing a new career suggests that there was a benefit to Tucker's job loss. A light would be beneficial in helping someone escape a dark, difficul... | |
Which animal is also adapted to be camouflaged among green leaves? | [
"green silver-line",
"blue poison dart frog"
] | 0 | Leaf insects live in the forests of Asia and Australia. The is adapted to be camouflaged among green leaves.
Figure: leaf insect. | closed choice | 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 leaf insect.
The leaf insect has a green leaf-shaped body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The green silver-line has a green body. It is adapted to be camoufla... | |
Not supported with pagination yet | Select the bird. | [
"western gorilla",
"red crowned crane",
"Asian elephant",
"giraffe"
] | 1 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds have feathers, two wings, and a beak. | An Asian elephant is a mammal. It has hair and feeds its young milk.
Elephants live in groups called herds. The oldest female in the herd is usually the leader.
A giraffe is a mammal. It has hair and feeds its young milk.
Giraffes eat mostly leaves that are too high up for other animals to reach.
A red crowned crane is... | |
Not supported with pagination yet | Which correctly shows the title of a song? | [
"\"make New Friends but keep the Old\"",
"\"Make New Friends but Keep the Old\""
] | 1 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The words but and the are not important, so they should not be capitalized.
The correct title is "Make New Friends but Keep the Old." | |
Not supported with pagination yet | Which sentence states a fact? | [
"Diwali is less enjoyable than other Hindu holidays, such as Holi and Navratri.",
"Many Hindus celebrate a holiday called Diwali by lighting candles and exchanging gifts."
] | 1 | closed choice | grade8 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved true by research or observation.
George Washington became president of the United States in 1789.
This statement is a fact. It can be proved by researching what year George Washington was inaugurated president.
An opinion is something that a person believes, thinks, or feels. An o... | The second sentence states a fact.
Many Hindus celebrate a holiday called Diwali by lighting candles and exchanging gifts.
It can be proved by reading about Diwali.
The first sentence states an opinion.
Diwali is less enjoyable than other Hindu holidays, such as Holi and Navratri.
Less enjoyable shows what a person bel... | |
Not supported with pagination yet | Is there a sentence fragment?
When the Albuquerque International Balloon Fiesta began in 1972, only thirteen hot air balloons took to the sky. The festival drew more than five hundred ballooning teams in 2014. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | There is not a sentence fragment. These are complete sentences because they express complete thoughts.
When the Albuquerque International Balloon Fiesta began in 1972, only thirteen hot air balloons took to the sky. The festival drew more than five hundred ballooning teams in 2014. | |
Which of the following could Finn's test show? | [
"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",
"if the sample fabric would absorb one drop of water in less than one second"
] | 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... | ||
Which of the following could Craig's test show? | [
"which design would have the greatest distance between the concert area and the road",
"if at least 20% of the park would be shaded by trees in each design",
"which design would have the least traffic noise in the concert area"
] | 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 | Which logical fallacy is used in the text?
In September, we removed the vending machines on our school's campus. By April, we saw an increase in the tenth grade boys' math scores on state tests. Clearly, there's a link. | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"false causation: the assumption that because two things happened together, one caused the other",
"guilt by association: a negative association intended to discredit someone or something"
] | 1 | closed choice | grade11 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that removing the school's vending machines helped increase the tenth grade boys' math scores. However, the fact that one event followed the other doesn't mean that there is necessarily a connection. For example, it may simply be a coincidence, or there may be a third factor that caused both events. Thi... | |
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 magnetic force is stronger in Pair 1.",
"The strength of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are 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. | |
Which part of the asparagus plant do we usually eat? | [
"the stem",
"the fruit",
"the root"
] | 0 | People use asparagus plants for food. We usually eat the part of this plant that supports the plant. It carries food, water, and nutrients through the plant. | closed choice | grade4 | natural science | biology | Plants | Classify fruits and vegetables as plant parts | The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions.
The roots take in water and nutrients from the soil. They also hold the plant in place in the soil.
The stem supports the plant. It carries food, water, and nutrients... | The part of the asparagus plant we usually eat is the stem. It supports the plant. It also carries food, water, and nutrients through the plant. | |
Identify the question that Janet's experiment can best answer. | [
"Does the amount of water in a glass affect whether eggs sink or float in the water?",
"Are eggs more likely to float in fresh water or salty water?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Janet poured four ounces of water into each of six glasses. Janet dissolved one tablespoon of salt in each of three glasses, and did not add salt to the other three. Then, Janet placed an egg in one glass and observed i... | 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 logical fallacy is used in the text?
Sure, you were only two minutes late for work today—but next week it will be ten minutes, and eventually half an hour. That's not acceptable. | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"guilt by association: a negative association intended to discredit someone or something",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences"
] | 2 | closed choice | grade11 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that showing up to work two minutes late will lead to showing up even later in the coming weeks. However, this isn't necessarily true. This argument offers only one extreme and unlikely outcome. This illustrates a type of logical fallacy known as the slippery slope fallacy. | |
Which trait did Megaloceros have? Select the trait you can observe on the fossil. | [
"antlers",
"a tail with long hair",
"a mane on the back of its neck"
] | 0 | This picture shows a fossil of an ancient animal called Megaloceros. An adult Megaloceros could grow over seven feet tall. | closed choice | grade6 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | ||
Not supported with pagination yet | Which word is not like the others? | [
"coat",
"shoe",
"eye",
"dress"
] | 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. | Coat, shoe, and dress go together. They are things you wear. Eye is not something you wear, so it is not like the other words. | |
Which animal is also adapted to be camouflaged among dead leaves? | [
"orange oakleaf butterfly",
"snowy owl"
] | 0 | Dead leaf mantises are found in forests. The mantis is adapted to be camouflaged among dead leaves.
Figure: dead leaf mantis. | closed choice | grade4 | 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 dead leaf mantis.
The dead leaf mantis has a reddish-brown body. It is adapted to be camouflaged among dead leaves, which often have a reddish or brownish color. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The orange oaklea... | |
Which country is highlighted? | [
"New Zealand",
"Australia",
"Papua New Guinea",
"the Marshall Islands"
] | 0 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is New Zealand. | |||
Not supported with pagination yet | What information supports the conclusion that Jamal acquired this trait? | [
"Jamal is most interested in American history.",
"Jamal learned history by reading."
] | 1 | Read the description of a trait.
Jamal knows a lot about history. | closed choice | grade3 | natural science | biology | Heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | What is the volume of a test tube? | [
"19 liters",
"19 milliliters"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a test tube is 19 milliliters.
19 liters is too much. |
Not supported with pagination yet | Based on this information, what is Clyde's phenotype for the coat color trait? | [
"a black coat",
"a reddish-brown coat"
] | 0 | In a group of horses, some individuals have a black coat and others have a reddish-brown coat. In this group, the gene for the coat color trait has two alleles. The allele for a reddish-brown coat (l) is recessive to the allele for a black coat (L).
Clyde is a horse from this group. Clyde has the heterozygous genotype ... | closed choice | grade7 | 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 Clyde's phenotype for the coat color trait. First, consider the alleles in Clyde's genotype for the coat color gene. Then, decide whether these alleles are dominant or recessive.
The allele for a reddish-brown coat (l) is recessive to the allele for a black coat (L). This means L is a dominant all... |
What is the capital of Utah? | [
"Salt Lake City",
"Wichita",
"Provo",
"Cheyenne"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Salt Lake City is the capital of Utah. | |||
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 | Use the evidence in the text to select the photosynthetic organism. | [
"Velvet ants look like ants covered in red hairs, but these insects are actually wasps! Velvet ants get sugars by eating nectar. The velvet ants use these sugars to get energy.",
"Kangaroo paws are Australian plants that have fine red hairs covering their flowers and leaves. Kangaroo paw plants combine carbon dio... | 1 | closed choice | grade7 | natural science | biology | Photosynthesis | Identify the photosynthetic organism | Organisms that carry out photosynthesis are called photosynthetic organisms. During photosynthesis, these organisms use light energy, carbon dioxide, and water to produce sugars and oxygen.
Photosynthetic organisms also often have the following characteristics:
They are producers, which are organisms that make their ow... | This organism is photosynthetic:
The text tells you that kangaroo paw plants combine water and carbon dioxide to make sugars that the plants use as food. This is evidence that the kangaroo paw plant is a photosynthetic organism.
This organism is not photosynthetic:
The text does not provide evidence that the velvet ant... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Mr. Stafford wanted the new employees to fill out their intake forms, but he couldn't find the forms.",
"Mr. Stafford wanted the new employees to fill out their intake forms, but he couldn't find them."
] | 1 | 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 them could refer to the new employees or their intake forms.
The first answer choice shows a possible correction for the vague pronoun reference. Them has been replaced with the forms.
Mr. Stafford wanted the new employees to fill out their intake... | |
Based on the event chain, what happens after the war ends? | [
"The Declaration of Independence is written and signed.",
"The Constitution is written and accepted by all the states."
] | 1 | This event chain shows some main events from the American Revolution. | 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 some main events from the American Revolution.
Follow the arrows to see the order of events. An arrow points from The war ends to The Constitution is written and accepted by all the states. So, the Constitution was written and accepted by al... | |
Which of these states is farthest east? | [
"Montana",
"Arizona",
"Texas",
"Washington"
] | 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 east arrow is pointing. Texas is farthest east. | ||
Not supported with pagination yet | Which tense does the sentence use?
Mrs. Olson will reply to Carson's question about space. | [
"past tense",
"future tense",
"present tense"
] | 1 | closed choice | grade3 | 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, reply. The verb tells you about something that is going to happen. | |
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"
] | 0 | 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 B has more mass than each particle in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average kinetic energy, sample B mus... | |
Which animal's limbs are also adapted for climbing trees? | [
"Sumatran orangutan",
"gerenuk"
] | 0 | Lar gibbons live in the forests of Southeast Asia. Their limbs are adapted for climbing trees.
Figure: lar gibbon. | closed choice | grade3 | 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.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the lar gibbon.
The lar gibbon uses its long limbs to reach branches while climbing. It uses its fingers and toes to grab the branches.
Now look at each animal. Figure out which animal has a similar adaptation.
The Sumatran orangutan has long limbs with fingers and toes. Its limbs are adapted for... |
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.