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Not supported with pagination yet | Which word does not rhyme? | [
"lake",
"shape",
"tape"
] | 0 | closed choice | grade2 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the same sound.
The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings.
The words tip and meet don't rhyme. They end with different sounds. | The words shape and tape rhyme. They both end with the ape sound.
The word lake does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | What information supports the conclusion that Lily inherited this trait? | [
"Some people use a hair dryer to straighten their hair. But Lily and her brothers have naturally straight hair.",
"Both of Lily's biological parents have naturally black hair.",
"When she was younger, Lily wore ribbons in her naturally black hair."
] | 1 | Read the description of a trait.
Lily has naturally black hair. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Which of these cities is marked on the map? | [
"Phoenix",
"Las Vegas",
"Denver",
"San Jose"
] | 0 | closed choice | grade5 | social science | geography | Cities | Cities of the West | The city is Phoenix, Arizona. Denver, San Jose, and Las Vegas are marked with gray circles on the map below. | |||
What is the name of the colony shown? | [
"Rhode Island",
"Illinois",
"Massachusetts",
"Ohio"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Rhode Island. | |||
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
On that winter morning, Elizabeth's hands were as cold as ice. | [
"metaphor",
"simile"
] | 1 | 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... | On that winter morning, Elizabeth's hands were as cold as ice.
The words hands and ice are compared using the word as. So, the sentence uses a simile. | |
Not supported with pagination yet | Assume all other forces on Katy are balanced. Which statement describes the forces on Katy? | [
"The forces are balanced, so there is no net force on Katy.",
"The forces are unbalanced, so there is a net force on Katy."
] | 1 | Katy is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Katy with a force of 600N. The seat of the cart is pushing up on Katy with a force of 1,200N. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Balanced and unbalanced forces | A force is a push or a pull that acts on an object. Every force has a direction and a magnitude, or strength. If two forces act on an object in opposite directions, the forces are called opposing forces.
When opposing forces have the same magnitude, they are balanced. If all the forces on an object are balanced, there ... | To determine if there is a net force on Katy, look at the forces:
Earth's gravity is pulling Katy down with a force of 600 N.
The seat of the cart is pushing Katy up with a force of 1,200 N.
The forces are in opposite directions, and the forces have different magnitudes: 600 N and 1,200 N. This means that the forces ar... |
Not supported with pagination yet | Which is the softest? | [
"metal trombone",
"cotton shirt",
"bone"
] | 1 | 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 cotton shirt is the softest. If you squeeze cotton fabric, it will change shape. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Although the author Norman Mailer is no longer with us, his writings live on. His Pulitzer Prize-winning book, The Executioner's Song, remains a classic example of his unique style of writing. | [
"euphemism",
"hyperbole"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
No longer with us is an indirect and more polite way of saying dead. | |
Which animal's skin is better adapted as a warning sign to ward off predators? | [
"Spanish shawl nudibranch",
"fantastic leaf-tailed gecko"
] | 0 | Golden dart frogs have poisonous glands in their brightly colored skin. The bright color serves as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: golden dart frog. | 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 golden dart frog.
The golden dart frog has poisonous glands in its brightly colored skin. Its skin is adapted to ward off predators. The bright colors serve as a warning sign that the golden dart frog is poisonous.
Now look at each animal. Figure out which animal has a similar adaptation.
The... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
unhappy - urgent | [
"us",
"upon"
] | 1 | closed choice | 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 upon is between the guide words unhappy - urgent, it would be found on that page. | |
Which specific humidity level was measured within the outlined area shown? | [
"13 grams of water vapor per kilogram of air",
"10 grams of water vapor per kilogram of air",
"23 grams of water vapor per kilogram of air"
] | 2 | The map below shows humidity in the lower atmosphere on October 28, 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 Asia on that day.
Look at the map. Then, answer the question below.
Data source: United States ... | 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 18 and 24 grams of water vapor per kilogram of air.
23 grams of water vapor per kilogram... | |
Not supported with pagination yet | Which word is not like the others? | [
"horn",
"piano",
"drum",
"sound"
] | 3 | closed choice | grade2 | 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. | Drum, piano, and horn go together. They are instruments. Sound is not an instrument, so it is not like the other words. | |
Which property do these three objects have in common? | [
"transparent",
"fuzzy",
"yellow"
] | 1 | 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.
You can see clearly through a transparent object. The yarn pom pom and the stuffed dice are not transparent.
A fuzzy object is covered in soft hair. All three objects are fuzzy.
Yellow is a color.
This color is yellow. The yarn pom pom and the stuffe... | |
What is the capital of Minnesota? | [
"Topeka",
"Baton Rouge",
"Fargo",
"Saint Paul"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Saint Paul is the capital of Minnesota. | |||
What is the capital of Kentucky? | [
"Jefferson City",
"Atlanta",
"Louisville",
"Frankfort"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Frankfort is the capital of Kentucky. | |||
Not supported with pagination yet | Is the following statement true or false?
Animal cells have chloroplasts. | [
"true",
"false"
] | 1 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | Animal cells have chloroplasts.
This statement is false. Animal cells do not have chloroplasts. Chloroplasts help plant cells make their own food. This food is a type of sugar called glucose. Animal cells cannot make their own food. | ||
Not supported with pagination yet | Select the one animal that has all of the reptile traits listed above. | [
"Loggerhead sea turtles hatch from eggs with shells. They live in the water, but they lay their eggs on the land. Their scaly, waterproof skin and thick shell help protect them from predators.",
"Goldfish hatch from eggs with no shells and have scaly skin. They are popular as pets in many countries today. They we... | 0 | Reptiles are a group of animals with similar traits. The following traits can be used to identify reptiles:
They have scaly, waterproof skin.
They make eggs with shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Reptiles have the following traits:
They have scaly, waterproof skin.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A goldfish has the following trai... |
What is the name of the colony shown? | [
"Michigan",
"Georgia",
"New Hampshire",
"Virginia"
] | 1 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Which animal's feet are also adapted for walking on large, floating leaves? | [
"wattled jacana",
"New Zealand falcon"
] | 0 | Bronze-winged jacanas live near rivers and lakes. They eat insects and snails that live on plants floating on the surface of the water.
The feet of the jacana are adapted for walking on large, floating leaves. The jacana uses its feet to spread its weight out over a wide area. This helps the bird walk on the leaves wit... | closed choice | grade4 | 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 bronze-winged jacana.
The bronze-winged jacana uses its toes to spread its weight out over a large area. This can help it walk on leaves without sinking into the water.
Now look at each animal. Figure out which animal has a similar adaptation.
The wattled jacana has long, thin toes on its fee... | |
Which country is highlighted? | [
"Haiti",
"Saint Lucia",
"Saint Vincent and the Grenadines",
"Barbados"
] | 1 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Lucia. | |||
Not supported with pagination yet | What information supports the conclusion that Tiana acquired this trait? | [
"Tiana can cook food over a fire.",
"Tiana learned how to build a fire at summer camp."
] | 1 | Read the description of a trait.
Tiana 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 logical fallacy is used in the text?
Did you hear? A bunch of Kamal's friends were at that protest that got out of hand. I had no idea that Kamal was such a troublemaker. | [
"guilt by association: a negative association intended to discredit someone or something",
"circular reasoning: an argument that supports a claim with the claim itself",
"false dichotomy: an argument that presents only two choices when more options exist"
] | 0 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Kamal must be a troublemaker because his friends were at an unruly protest. However, the behavior of Kamal's friends doesn't necessarily determine his own behavior. This illustrates a type of logical fallacy known as guilt by association. | |
Not supported with pagination yet | What is the temperature of a cold glass of water? | [
"2°F",
"2°C"
] | 1 | Select the better estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Estimate temperatures | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units.
212°F | Water boils | 100°C
98.6°F | Body temperature | 37°C
68°F ... | The better estimate for the temperature of a cold glass of water is 2°C.
2°F is too cold. |
Not supported with pagination yet | What do these two changes have in common?
bending a paper clip
butter melting on a hot day | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 0 | 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.
Bending a paper clip is a physical change. After you bend it, the paper clip has a different shape. But it is still made of the same type of matter.
Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but it is still ma... | |
What is the capital of Colorado? | [
"Denver",
"Saint Louis",
"Frankfort",
"Colorado Springs"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | What kind of sentence is this?
Tammy gave me flowers for no reason. | [
"exclamatory",
"declarative"
] | 1 | closed choice | grade4 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
Not supported with pagination yet | Compare the motion of three sailboats. Which sailboat was moving at the highest speed? | [
"a sailboat that moved 55kilometers west in 5hours",
"a sailboat that moved 40kilometers east in 5hours",
"a sailboat that moved 25kilometers east in 5hours"
] | 0 | 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 5 hours. The sailboat that moved 55 kilometers moved the farthest distance in that time. So, that sailboat must have moved at the highest ... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Abdul's '64 Impala groaned as he turned the ignition. Yet again he resolved to refurbish it over the summer. | [
"personification",
"simile"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses personification, giving human characteristics to nonhuman things.
Abdul's '64 Impala groaned describes the car as if it were human. | |
Which country is highlighted? | [
"Tuvalu",
"Fiji",
"Samoa",
"Tonga"
] | 3 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tonga. | |||
What is the direction of this push? | [
"toward the soccer player's head",
"away from the soccer player's head"
] | 1 | A soccer player pushes the ball up the field with her head. | closed choice | grade2 | natural science | physics | Force and motion | Identify pushes and pulls | One object can make another object move with a push or a pull.
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 soccer player pushes the ball away from her head. The ball moves up the field. The direction of the push is away from the soccer player's head. | |
Is aquamarine a mineral or a rock? | [
"rock",
"mineral"
] | 1 | Aquamarine has the following properties:
pure substance
solid
naturally occurring
not made by living things
fixed crystal structure
non-metallic luster | 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... | Aquamarine has all the properties of a mineral. So, aquamarine is a mineral. | |
Is the following statement about our solar system true or false?
Earth is the largest planet that is made mainly of rock. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | The table tells you that Mercury, Venus, Earth, and Mars are the planets made mainly of rock. Of these planets, Earth has the volume with the largest exponent. So, Earth is the largest planet that is made mainly of rock. | |
Not supported with pagination yet | Would you find the word papoose on a dictionary page with the following guide words?
pitch - pork | [
"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 papoose is not between the guide words pitch - pork, it would not be found on that page. | |
What is the name of the colony shown? | [
"South Carolina",
"Connecticut",
"Georgia",
"Maryland"
] | 2 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Georgia. | |||
What is the capital of Arkansas? | [
"Philadelphia",
"Charlotte",
"Tallahassee",
"Little Rock"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Which animal is also adapted for flight? | [
"nilgai",
"gray-headed albatross"
] | 1 | Flamingos fly long distances every year in search of food and places to nest. They have wings instead of arms. Flamingos are adapted for flight.
Figure: flamingo. | 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 flamingo.
The flamingo has large, powerful wings. It is adapted for flight. Long, powerful wings help the flamingo travel long distances by air.
Now look at each animal. Figure out which animal has a similar adaptation.
The gray-headed albatross has long, powerful wings. It is adapted for fli... | |
Not supported with pagination yet | Which tense does the sentence use?
Erica and Vicky win the game every time. | [
"past tense",
"future tense",
"present 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 present tense. You can tell because it uses a present-tense verb, win. The verb tells you about something that is true or happening now. | |
What can Lara and Elena trade to each get what they want? | [
"Elena can trade her almonds for Lara's tomatoes.",
"Lara can trade her tomatoes for Elena's carrots.",
"Lara can trade her tomatoes for Elena's broccoli.",
"Elena can trade her broccoli for Lara's oranges."
] | 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.
Lara and Elena open their lunch boxes in the school cafeteria. Neither Lara nor Elena got everything that they wanted. The table ... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Lara wants broccoli. Elena 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 | Compare the motion of two sailboats. Which sailboat was moving at a lower speed? | [
"a sailboat that moved 50kilometers in 5hours",
"a sailboat that moved 90kilometers 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 kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects... | Look at the distance each sailboat moved and the time it took to move that distance.
One sailboat moved 50 kilometers in 5 hours.
The other sailboat moved 90 kilometers in 5 hours.
Notice that each sailboat spent the same amount of time moving. The sailboat that moved 50 kilometers moved a shorter distance in that time... | |
What is the name of the colony shown? | [
"Virginia",
"Georgia",
"Massachusetts",
"Michigan"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Virginia.
The Virginia Colony included land that would later become part of the state of West Virginia. West Virginia was never its own colony. | |||
Not supported with pagination yet | Which type of sentence is this?
Russia has a variety of natural resources, including oil, natural gas, timber, iron ore, copper, and lead. | [
"compound-complex",
"simple",
"complex",
"compound"
] | 1 | closed choice | grade10 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is simple. It is a single independent clause.
Russia has a variety of natural resources, including oil, natural gas, timber, iron ore, copper, and lead. | |
Which country is highlighted? | [
"Papua New Guinea",
"Australia",
"Vanuatu",
"Nauru"
] | 3 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Nauru. | |||
Not supported with pagination yet | Select the animal that has a backbone. | [
"luna moth",
"salt water crocodile"
] | 1 | Hint: Mammals, birds, fish, reptiles, and amphibians all have backbones. | closed choice | grade2 | natural science | biology | Classification | Identify animals with and without backbones | Some animals have a backbone. The backbone is made of many bones in an animal's back. An animal's backbone helps connect the different parts of its body. In the drawings below, each animal's backbone is colored orange.
Other animals do not have a backbone. In fact, these animals don't have any bones! Some animals witho... | A salt water crocodile is a reptile. Like other reptiles, a salt water 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. |
Not supported with pagination yet | Would you find the word soot on a dictionary page with the following guide words?
shove - sponge | [
"no",
"yes"
] | 1 | yes or no | grade8 | 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 soot is between the guide words shove - sponge, it would be found on that page. | |
Not supported with pagination yet | Would you find the word capsule on a dictionary page with the following guide words?
child - curse | [
"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 capsule is not between the guide words child - curse, it would not be found on that page. | |
What is the capital of Colorado? | [
"Boulder",
"Denver",
"Colorado Springs",
"Fort Wayne"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Which object has more thermal energy? | [
"a 350-gram mug of cocoa at a temperature of 30°C",
"a 350-gram mug of cocoa at a temperature of 75°C"
] | 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 move faster, the temperature goes up. The matter now has both ... | The two mugs of cocoa have the same mass but different temperatures. Since the 75°C mug of cocoa is hotter than the 30°C mug of cocoa, it has more thermal energy. |
Select the organism in the same genus as the eastern gray kangaroo. | [
"Equus quagga",
"Macropus rufus",
"Camelus dromedarius"
] | 1 | This organism is an eastern gray kangaroo. Its scientific name is Macropus giganteus. | closed choice | grade8 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | An eastern gray kangaroo's scientific name is Macropus giganteus. The first word of its scientific name is Macropus.
Camelus dromedarius is in the genus Camelus. The first word of its scientific name is Camelus. So, Camelus dromedarius and Macropus giganteus are not in the same genus.
Equus quagga is in the genus Equus... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Lisa plays basketball. | [
"acquired",
"inherited"
] | 0 | closed choice | grade5 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | People are not born knowing how to play basketball. Instead, some people learn how to play basketball. Playing the sport takes practice. So, playing basketball is an acquired trait. | |
Not supported with pagination yet | Using only these supplies, which question can Aubrey investigate with an experiment? | [
"Do scented candles or unscented candles produce more smoke?",
"Do candles with thick wicks or with thin wicks produce more smoke?",
"Do large candles or small candles produce more smoke?"
] | 1 | Aubrey is burning some new candles. She notices that they produce different amounts of smoke. She wonders what factors affect how much smoke a candle produces. So, she decides to design an experiment. She has the following supplies available:
two large unscented candles with thick wicks
two large unscented candles with... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Select the organism in the same species as the Steller's sea eagle. | [
"Falco novaeseelandiae",
"Balearica pavonina",
"Haliaeetus pelagicus"
] | 2 | This organism is a Steller's sea eagle. Its scientific name is Haliaeetus pelagicus. | closed choice | grade8 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A Steller's sea eagle's scientific name is Haliaeetus pelagicus.
Falco novaeseelandiae does not have the same scientific name as a Steller's sea eagle. So, Haliaeetus pelagicus and Falco novaeseelandiae are not in the same species.
Balearica pavonina does not have the same scientific name as a Steller's sea eagle. So, ... | |
Not supported with pagination yet | What do these two changes have in common?
erosion caused by wind
breaking a piece of glass | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating.",
"Both are only physical changes."
] | 3 | 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.
Erosion caused by wind is a physical change. The wind carries away tiny pieces of rock. But the pieces of rock do not become a different type of matter.
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 ma... | |
Not supported with pagination yet | What information supports the conclusion that Patty inherited this trait? | [
"Patty's parents were born with wavy hair. They passed down this trait to Patty.",
"Patty and her mother both have short hair."
] | 0 | Read the description of a trait.
Patty has wavy 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... | |
Complete the statement.
Bromomethane is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of bromomethane. Bromomethane was once used by farmers to kill harmful organisms in soil. It is no longer used because it damages the atmosphere's ozone layer. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether bromomethane is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the chemic... | |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"studying someone's outfit",
"scrutinizing someone's outfit"
] | 1 | closed choice | grade6 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | Scrutinizing someone's outfit has a more negative connotation. Scrutinizing and studying both denote examining something closely. However, scrutinizing suggests looking at something in a critical way, while studying suggests looking at something in order to learn more about it. | |
Not supported with pagination yet | What information supports the conclusion that Nellie acquired this trait? | [
"Nellie learned biology by doing experiments.",
"Nellie is most interested in plant biology."
] | 0 | Read the description of a trait.
Nellie knows a lot about biology. | 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... | |
What is the capital of Florida? | [
"Tallahassee",
"Salem",
"Tampa",
"Orlando"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Tallahassee is the capital of Florida. | |||
Select the organism in the same species as the European wildcat. | [
"Felis silvestris",
"Neofelis nebulosa",
"Lynx canadensis"
] | 0 | This organism is a European wildcat. Its scientific name is Felis silvestris. | 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 European wildcat's scientific name is Felis silvestris.
Felis silvestris has the same scientific name as a European wildcat. So, these organisms are in the same species.
Lynx canadensis does not have the same scientific name as a European wildcat. So, Felis silvestris and Lynx canadensis are not in the same species.
... | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Select the animal. | [
"Apple trees can grow fruit.",
"Vultures eat mammals and birds.",
"Dandelions can grow small yellow flowers.",
"Pine trees have green leaves."
] | 1 | 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... | An apple tree is a plant. It can grow fruit.
People have been growing apples for thousands of years. There are more than 7,500 types of apples!
A vulture is an animal. It eats mammals and birds.
Vultures usually do not hunt live animals. They eat animals that are already dead! This behavior is called scavenging.
A pine... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"your friend,\nMark",
"Your friend,\nMark"
] | 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 closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Select the organism in the same genus as the Canada lynx. | [
"Caprimulgus europaeus",
"Lynx pardinus",
"Cervus canadensis"
] | 1 | This organism is a Canada lynx. Its scientific name is Lynx canadensis. | closed choice | grade7 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A Canada lynx's scientific name is Lynx canadensis. The first word of its scientific name is Lynx.
Caprimulgus europaeus is in the genus Caprimulgus. The first word of its scientific name is Caprimulgus. So, Caprimulgus europaeus and Lynx canadensis are not in the same genus.
Cervus canadensis and Lynx canadensis are n... | |
Not supported with pagination yet | What is the mass of a passenger airplane? | [
"41 tons",
"41 pounds",
"41 ounces"
] | 0 | Select the best estimate. | closed choice | grade5 | 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 passenger airplane is 41 tons.
41 ounces and 41 pounds are both too light. |
Which continent is highlighted? | [
"Africa",
"North America",
"Antarctica",
"Australia"
] | 3 | 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 Australia. | ||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
The drought is worsening, and the state politicians are fiddling while Rome burns! | [
"a poem",
"history"
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion fiddling while Rome burns is history.
According to some accounts, the Roman emperor Nero stood by and did nothing while Rome burned. He is said to have played the fiddle while the crisis unfolded.
The allusion fiddling while Rome burns means ignoring a critical situation. | |
Which animal's skin is also adapted for survival in cold places? | [
"naked mole rat",
"snowy owl"
] | 1 | Arctic wolves live in the Canadian Arctic and Greenland. The 's skin is adapted to help the animal survive in cold places.
Figure: Arctic wolf. | 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 Arctic wolf.
The Arctic wolf has thick fur covering its skin. Its skin is adapted for survival in cold places. The Arctic wolf uses its fur to keep warm in cold weather.
Now look at each animal. Figure out which animal has a similar adaptation.
The snowy owl has a thick coat of feathers cover... | |
Not supported with pagination yet | Would you find the word blink on a dictionary page with the following guide words?
bet - button | [
"yes",
"no"
] | 0 | yes or no | grade5 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since blink is between the guide words bet - button, it would be found on that page. | |
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Duncan perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift.",
"Duncan perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly."
] | 0 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses peruse in its traditional sense: to examine in detail.
Duncan perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift.
The second text uses peruse in its nontraditional sense: to look through in a casual manner.
Duncan perused a clothing catalog as he waite... | |
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."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | 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 2 than in Pair 1. So, the magnitud... | |
What is the capital of Alaska? | [
"Wilmington",
"Anchorage",
"Carson City",
"Juneau"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Juneau is the capital of Alaska. | |||
Not supported with pagination yet | What is the volume of a test tube? | [
"12 liters",
"12 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 12 milliliters.
12 liters is too much. |
Not supported with pagination yet | Which figure of speech is used in this text?
Ladies and gentlemen, this is your captain speaking. We have a small problem. All four engines have stopped . . . I trust you are not in too much distress.
—Captain Eric Moody, after his Boeing 747's engines failed | [
"assonance",
"understatement"
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses understatement, which involves deliberately representing something as less serious or important than it really is.
We have a small problem is an understatement, since the plane was likely to crash. | |
What is the capital of Alaska? | [
"Anchorage",
"Green Bay",
"Salt Lake City",
"Juneau"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Juneau is the capital of Alaska. | |||
Not supported with pagination yet | Which type of sentence is this?
As Dan sat down on the rickety old chair, it abruptly collapsed beneath him. | [
"simple",
"compound-complex",
"compound",
"complex"
] | 3 | closed choice | grade8 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is complex. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction as.
As Dan sat down on the rickety old chair, it abruptly collapsed beneath him. | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 0 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Is the following statement about our solar system true or false?
Half of the planets are made mainly of gas or ice. | [
"true",
"false"
] | 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 of the eight planets, two are made mainly of gas and two are made mainly of ice. So, four of the eight, or half, of the planets are made mainly of gas or ice. | |
Which statement describes the Kibale National Forest ecosystem? | [
"It has many different types of organisms.",
"It has mostly small plants."
] | 0 | Figure: Kibale National Forest.
Kibale National Forest is a tropical rain forest ecosystem in Uganda, a country in eastern Africa. This rain forest is home to many African primates, including chimpanzees. | 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 tropical rain forest is a type of ecosystem. Tropical rain forests have the following features: year-round rain and warm temperatures, soil that is poor in nutrients, and many different types of organisms. So, the following statements describe the Kibale National Forest ecosystem: year-round rain and warm temperature... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Don't be deceived by Beth Everett's articles on rural, blue-collar workers. Her husband is a fancy investment banker, so she can't possibly understand their situation. | [
"guilt by association: a negative association intended to discredit someone or something",
"circular reasoning: an argument that supports a claim with the claim itself",
"appeal to nature: the assumption that natural things are always good"
] | 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 Beth Everett can't understand rural, blue-collar workers because she is associated with an urban newspaper. However, where Beth works doesn't necessarily indicate anything about her ability to empathize. This illustrates a type of logical fallacy known as guilt by association. | |
Not supported with pagination yet | Which figure of speech is used in this text?
So we beat on . . . borne back ceaselessly into the past.
—F. Scott Fitzgerald, The Great Gatsby | [
"alliteration",
"simile"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses alliteration, the repetition of sounds at the beginning of nearby words.
Beat on . . . borne back repeats the b sound. | |
Not supported with pagination yet | What is the mass of an elephant? | [
"4 pounds",
"4 ounces",
"4 tons"
] | 2 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of an elephant is 4 tons.
4 ounces and 4 pounds are both too light. |
Not supported with pagination yet | What kind of sentence is this?
That's the best bakery in town! | [
"exclamatory",
"interrogative"
] | 0 | closed choice | grade5 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, but it shows strong feeling and ends with an exclamation point. It is an exclamatory sentence. | |
Which of these states is farthest west? | [
"West Virginia",
"Maine",
"Vermont",
"Delaware"
] | 0 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. West Virginia is farthest west. | ||
What is the capital of Rhode Island? | [
"Concord",
"Providence",
"Annapolis",
"Montpelier"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Not supported with pagination yet | What is the volume of a salt shaker? | [
"50 milliliters",
"50 liters"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a salt shaker is 50 milliliters.
50 liters is too much. |
Not supported with pagination yet | Which text uses the word ironic in its traditional sense? | [
"Last winter, Reid took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a rare snowstorm happened to hit Florida that week.",
"Last winter, Reid took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, he just missed a few of his college friends, who... | 0 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses ironic in its traditional sense: contrary to what was intended, often in an amusing way. It's ironic because Reid tried to get away from the snow but found himself in a snowstorm regardless.
Last winter, Reid took a vacation to Florida to escape Boston's cold, snowy weather. In an ironic twist, a ra... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
The wind blew through my hair and () my ears. | [
"whispered in",
"chilled"
] | 0 | closed choice | grade8 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the phrase whispered in. It describes the wind as if it were a person speaking quietly. | |
Which property do these three objects have in common? | [
"colorful",
"fuzzy",
"sticky"
] | 0 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A fuzzy object is covered in soft hair. The socks are fuzzy, but the building blocks and the silk tie are not.
A colorful object has one or more bright colors. All three objects are colorful.
A sticky object can attach or stick to other things. None ... | |
What is the capital of Idaho? | [
"Fort Wayne",
"Nampa",
"Boise",
"Salt Lake City"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Boise is the capital of Idaho. | |||
What is the name of the colony shown? | [
"Wisconsin",
"Delaware",
"New Hampshire",
"New York"
] | 1 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Delaware. | |||
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample B",
"sample A",
"neither; the samples have the same temperature"
] | 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 | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average ... | |
Not supported with pagination yet | Compare the motion of two mountain bikers. Which mountain biker was moving at a lower speed? | [
"a mountain biker who moved 105miles in 10hours",
"a mountain biker who moved 90miles in 10hours"
] | 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 mountain biker moved and the time it took to move that distance.
One mountain biker moved 90 miles in 10 hours.
The other mountain biker moved 105 miles in 10 hours.
Notice that each mountain biker spent the same amount of time moving. The mountain biker who moved 90 miles moved a shorter dist... | |
Not supported with pagination yet | Which is a compound sentence? | [
"The nervous swimmer steps onto the diving platform.",
"Amy forgot to bring her dictionary, so she will borrow mine."
] | 1 | closed choice | grade4 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so.
Amy forgot to bring her dictionary, so she will borrow mine. | |
Not supported with pagination yet | Select the one animal that has all of the cartilaginous fish traits listed above. | [
"Great white sharks use rows of jagged teeth to catch their prey. They have fins instead of limbs, and their skeleton is made of cartilage. Great white shark eggs do not have shells for protection. Instead, the eggs grow and hatch inside the mother shark.",
"Western rattlesnakes have scaly, waterproof skin. They ... | 0 | Cartilaginous fish are a group of animals with similar traits. The following traits can be used to identify cartilaginous fish:
They have fins, not limbs.
They live underwater.
They have a skeleton made of cartilage.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify animals | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Cartilaginous fish have the following traits:
They have fins, not limbs.
They live underwater.
They have a skeleton made of cartilage.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with tra... |
Not supported with pagination yet | Complete the sentence.
Breaking a rock in half is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade2 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two ways matter can change.
In a chemical change, the type of matter changes.
Burning a piece of paper is a chemical change. The paper changes into ash and smoke.
In a physical change, the type of matter stays the same.
Cutting a piece of paper is a physical change. The cut pie... | Breaking a rock in half is a physical change. The rock gets broken into two pieces. But the pieces are still made of the same type of matter as the original rock. | |
Which of these states is farthest west? | [
"Virginia",
"New Hampshire",
"Indiana",
"Mississippi"
] | 3 | 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 west arrow is pointing. Mississippi is farthest west. | ||
Not supported with pagination yet | Use the evidence in the text to select the photosynthetic organism. | [
"Snow leopards have special cells in their skin. These cells produce substances that help color the animals' fur.",
"Polka dot plants have chloroplasts in their cells. The plants use these chloroplasts to capture light energy from the Sun."
] | 1 | closed choice | grade5 | natural science | biology | Plants | Identify the photosynthetic organism | Organisms that carry out photosynthesis are called photosynthetic organisms. During photosynthesis, these organisms use light energy to turn water and carbon dioxide into 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 polka dot plants have chloroplasts in their cells. This is evidence that the polka dot plant is a photosynthetic organism.
This organism is not photosynthetic:
The text does not provide evidence that the snow leopard is photosynthetic. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Where Ernest lives, winter is the rainiest season of the year. | [
"weather",
"climate"
] | 1 | closed choice | grade5 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Where Ernest lives, winter is the rainiest season of the year.
This passage tells you about the usual precipitation where Ernest lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. | |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"\"Secret of the Ninja\"",
"***Secret of the Ninja***"
] | 1 | 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 **Secret of the Ninja**. | |
Which solution has a higher concentration of green particles? | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each green 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 green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... |
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.