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Not supported with pagination yet | Which figure of speech is used in this text?
Go back to Mississippi, go back to Alabama, go back to South Carolina, go back to Georgia, go back to Louisiana, go back to the slums and ghettos of our northern cities, knowing that somehow this situation can and will be changed.
—Martin Luther King, Jr., "I Have a Dream" s... | [
"anaphora",
"apostrophe"
] | 0 | closed choice | grade11 | 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 anaphora, the repetition of the same word or words at the beginning of several phrases or clauses.
King repeats the words go back at the beginning of each clause. | |
Not supported with pagination yet | Which figure of speech is used in this text?
When Darrell finally agreed to let his daughter adopt the stray dog, she responded with a smile that was a mile wide. | [
"hyperbole",
"paradox"
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
A smile that was a mile wide is an exaggeration, since it is physically impossible to have a smile that is actually a mile wide. | |
Is an arrowhead a solid, a liquid, or a gas? | [
"a liquid",
"a gas",
"a solid"
] | 2 | closed choice | grade3 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | An arrowhead is a solid. A solid has a size and shape of its own.
An arrowhead is made of rock. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
resist - ruby | [
"range",
"rough"
] | 1 | closed choice | 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 rough is between the guide words resist - ruby, it would be found on that page. | |
What can Ezra and Charlotte trade to each get what they want? | [
"Charlotte can trade her almonds for Ezra's tomatoes.",
"Charlotte can trade her broccoli for Ezra's oranges.",
"Ezra can trade his tomatoes for Charlotte's broccoli.",
"Ezra can trade his tomatoes for Charlotte's sandwich."
] | 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.
Ezra and Charlotte open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Ezra wanted ... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Ezra wanted broccoli in his lunch and Charlotte was hoping for tomatoes. Look at the labeled part of the images.
Ezra has tomatoes. Charlotte has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want. | ||
Not supported with pagination yet | What information supports the conclusion that Edward inherited this trait? | [
"Edward's parents have blond hair. They passed down this trait to Edward.",
"Edward's mother cuts his hair every month."
] | 0 | Read the description of a trait.
Edward has blond hair. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | Using only these supplies, which question can Brody investigate with an experiment? | [
"Do rubber balloons or foil balloons stick to the wooden door longer after being rubbed on his hair?",
"Do rubber balloons stick to a wooden door or a metal door longer after being rubbed on his hair?",
"Do rubber balloons stick to a cotton blanket or a wooden door longer after being rubbed on his hair?"
] | 2 | Brody went to a magic show. The magician rubbed a balloon on her hair and then held the balloon against a wall. When the magician released the balloon, Brody was amazed to see that it stuck to the wall! He wonders what factors affect how well balloons stick to different surfaces. So, he decides to design an experiment.... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | How long is a paper clip? | [
"26 millimeters",
"26 centimeters",
"26 meters"
] | 0 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a paper clip is 26 millimeters.
26 centimeters and 26 meters are both too long. |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Istanbul.
The streets of Istanbul are often filled with people during the summer festivals. The temperature dropped quickly as the sun set over Istanbul on the night of the art festival.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain plac... | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
The streets of Istanbul are often filled with people during the summer festivals. The temperature dropped quickly as the sun set over Istanbul on the night of the art festival.
The underlined part of the passage tells you about the temperature in Istanbul on a summer night. This passage desc... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear mr. hurst,",
"Dear Mr. Hurst,"
] | 1 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second greeting is correct:
Its first word is capitalized, and it ends with a comma. Mr. Hurst is capitalized because it is a proper noun. | |
In this food web, which organism contains matter that eventually moves to the bat star? | [
"sea otter",
"plainfin midshipman",
"sea urchin"
] | 1 | Below is a food web from an ocean ecosystem in Monterey Bay, off the coast of California.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade6 | natural science | biology | Ecological interactions | Interpret food webs II | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows to the bat star.
The only arrow pointing from the sea otter leads to the orca. The only arrow pointing from the orca leads to the sea cucumber. No arrows point from the sea cucumber to any other organis... | |
What is the capital of Virginia? | [
"Norfolk",
"Arlington",
"Montgomery",
"Richmond"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Richmond is the capital of Virginia. | |||
Which statement is true about the average monthly precipitation in Nairobi? | [
"More precipitation falls in April than in August.",
"Nairobi gets about the same amount of precipitation each month.",
"February is the wettest month of the year."
] | 0 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Nairobi, look at the graph.
Choice "Feb" is incorrect.
Choice "Apr" is incorrect.
Choice "Aug" is incorrect.
Choice "More precipitation falls in April than in August." is incorrect.
April has a higher average monthly precipitation than August.
Choice "February is the wett... | |
Not supported with pagination yet | Which figure of speech is used in this text?
I was helpless. I did not know what in the world to do. I was quaking from head to foot, and I could have hung my hat on my eyes, they stuck out so far.
—Mark Twain, Old Times on the Mississippi | [
"hyperbole",
"euphemism"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
Could have hung my hat on my eyes, they stuck out so far is an exaggeration, since the speaker probably could not have literally hung his hat on his eyes. | |
Not supported with pagination yet | What do these two changes have in common?
knitting yarn into a scarf
using a large magnet to remove pieces of iron from a junkyard | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating."
] | 2 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Knitting yarn into a scarf is a physical change. The yarn gets a different shape, but it is still made of the same type of matter.
Using a large magnet to remove pieces of iron from a junkyard is a physical change. Both the iron and the magnet are still made of the same type of matter a... | |
Not supported with pagination yet | Which is a compound sentence? | [
"Carrie has always loved acting, and she often talks about moving to Hollywood.",
"According to many scholars, the 1798 publication of Lyrical Ballads by Samuel Taylor Coleridge and William Wordsworth began the romantic period in English literature."
] | 0 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction and.
Carrie has always loved acting, and she often talks about moving to Hollywood. | |
Can Daphnia pulex cells make their own food? | [
"no",
"yes"
] | 0 | This organism is Daphnia pulex. It is a member of the animal kingdom.
Daphnia pulex lives in lakes and ponds. D. pulex can sense chemicals that its predators release into the water. When D. pulex senses that a predator is nearby, it can grow sharp spikes on its head! These spikes make D. pulex harder to eat. | yes or no | grade4 | natural science | biology | Classification | Describe, classify, and compare kingdoms | In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms.
Organisms in each kingdom have specific traits. The table below sho... | Daphnia pulex is an animal. Animal cells cannot make their own food. Animals get their food by digesting other organisms. | |
Not supported with pagination yet | Which letter closing is more formal? | [
"Best regards,",
"Cheers,"
] | 0 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second letter closing is more formal. The other letter closing is more casual and suggests a familiarity with the person being written to. | |
Not supported with pagination yet | Based on this information, what is this scarlet rosemallow plant's genotype for the flower color gene? | [
"red flowers",
"FF"
] | 1 | In a group of scarlet rosemallow plants, some individuals have red flowers and others have white flowers. In this group, the gene for the flower color trait has two alleles. The allele F is for red flowers, and the allele f is for white flowers.
A certain scarlet rosemallow plant from this group has red flowers. This p... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's genotype for a gene is its combination of alleles for that gene. The scarlet rosemallow plant has two alleles for red flowers (F). So, the plant's genotype for the flower color gene is FF. |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
From the look on her face, Lucia is carrying an albatross around her neck. | [
"the Bible",
"a poem"
] | 1 | closed choice | grade11 | 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.
The protean nature of the disease makes it difficult to diagnose.
The word protean is an allusion to the sea god Proteus in Gree... | The source of the allusion an albatross around her neck is a poem.
In Samuel Taylor Coleridge's poem "The Rime of the Ancient Mariner," a sailor shoots and kills an albatross, an action that curses the ship and crew. As his crew members die, the Ancient Mariner feels his guilt hanging like the albatross around his neck... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Aunt Jane,",
"Dear Aunt jane,"
] | 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 second greeting is correct:
Its first word is capitalized, and it ends with a comma. Aunt Jane is capitalized because it is a proper noun. | |
Which property matches this object? | [
"sour",
"salty"
] | 1 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
A lemon has a sour taste. The fries are not sour.
Potato chips have a salty taste. The fries are salty. | |
Which property do these three objects have in common? | [
"blue",
"sour",
"salty"
] | 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.
Potato chips have a salty taste. All three objects are salty.
Blue is a color.
This color is blue. The cracker and the fries are not blue.
A lemon has a sour taste. None of the objects are sour.
The property that all three objects have in common is s... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Russell has a scar on his right hand. | [
"inherited",
"acquired"
] | 1 | Hint: Most scars are caused by accidents during a person's life. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. |
Not supported with pagination yet | Which word is not like the others? | [
"several",
"some",
"many",
"where"
] | 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. | Many, several, and some go together. They are words for more than one. Where is not a word for more than one, so it is not like the other words. | |
Not supported with pagination yet | Which tense does the sentence use?
The bird will build a nest. | [
"future tense",
"present tense",
"past tense"
] | 0 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, build. The verb tells you about something that is going to happen. | |
What is the capital of Vermont? | [
"Billings",
"Burlington",
"Montpelier",
"New York City"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Montpelier is the capital of Vermont. | |||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"The Romeros' car looks just like the Cunninghams', but theirs has a dent in the bumper.",
"The Romeros' car has a dent in the bumper, but otherwise their car looks just like the Cunninghams'."
] | 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 second answer choice contains a vague pronoun reference. The pronoun theirs could refer to the Romeros' or the Cunninghams'.
The Romeros' car looks just like the Cunninghams', but theirs has a dent in the bumper.
The first answer choice shows a possible correction for the vague pronoun reference. The text has been ... | |
Select the organism in the same species as the brown pelican. | [
"Pelecanus occidentalis",
"Ardea cocoi",
"Strix uralensis"
] | 0 | This organism is a brown pelican. Its scientific name is Pelecanus occidentalis. | closed choice | grade5 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A brown pelican's scientific name is Pelecanus occidentalis.
Pelecanus occidentalis has the same scientific name as a brown pelican. So, these organisms are in the same species.
Ardea cocoi does not have the same scientific name as a brown pelican. So, Pelecanus occidentalis and Ardea cocoi are not in the same species.... | |
Not supported with pagination yet | Based on this information, what is Sammy's phenotype for the fur length trait? | [
"FF",
"short fur"
] | 1 | In a group of dogs, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele F is for short fur, and the allele f is for long fur.
Sammy, a dog from this group, has short fur. Sammy has two alleles for short fur. | closed choice | grade8 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Sammy's observable version of the fur length trait is short fur. So, Sammy's phenotype for the fur length trait is short fur. |
Which of these states is farthest west? | [
"New York",
"Maryland",
"North Carolina",
"Kentucky"
] | 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. Kentucky is farthest west. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
amazed - authority | [
"alley",
"anything"
] | 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 anything is between the guide words amazed - authority, it would be found on that page. | |
Look at the models of molecules below. Select the elementary substance. | [
"cyclooctasulfur",
"hydrazine",
"cyclopropane"
] | 0 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify 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 ... | |||
Which i in column 1? | [
"the fire department",
"the police department",
"the gas station",
"the school"
] | 2 | closed choice | grade2 | social science | geography | Geography | Use a letter-number grid | A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers. | The gas station is in column 1. | ||
Not supported with pagination yet | Select the solid. | [
"marbles",
"rain",
"coffee",
"air inside a soccer ball"
] | 0 | closed choice | grade3 | natural science | physics | States of matter | Identify solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Coffee is a liquid. A liquid takes the shape of any container it is in. If you pour coffee into a different container, the coffee will take the shape of that container. But the coffee will still take up the same amount of space.
A marble is a solid. A solid has a size and shape of its own. A marble can be made of clear... | |
Not supported with pagination yet | What information supports the conclusion that Victor inherited this trait? | [
"Victor wears glasses and so do his sisters.",
"Victor's biological father wears contacts in his hazel eyes.",
"Victor's friend also has hazel eyes."
] | 1 | Read the description of a trait.
Victor has hazel eyes. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Select the animal. | [
"Coconut trees have large, thin leaves.",
"Basil has green leaves.",
"Yaks eat plants.",
"Orange trees can grow fruit."
] | 2 | 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 orange tree is a plant. It can grow fruit.
Orange trees grow in sunny, warm places. They can be damaged by cold weather.
Basil is a plant. It has green leaves.
Basil leaves are used in cooking.
A yak is an animal. It eats plants.
Yaks live in cold places. Their long hair helps keep them warm.
A coconut tree is a pla... | |
What can Kristen and Brendan trade to each get what they want? | [
"Kristen can trade her tomatoes for Brendan's carrots.",
"Kristen can trade her tomatoes for Brendan's broccoli.",
"Brendan can trade his almonds for Kristen's tomatoes.",
"Brendan can trade his broccoli for Kristen's oranges."
] | 1 | 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.
Kristen and Brendan open their lunch boxes in the school cafeteria. Neither Kristen nor Brendan got everything that they wanted. ... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Kristen wants broccoli. Brendan 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. | ||
What is the capital of Nevada? | [
"Frankfort",
"Carson City",
"Helena",
"Denver"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | |||
Not supported with pagination yet | Complete the statement.
Bromine is (). | [
"a compound",
"an elementary substance"
] | 1 | Liquid bromine is made in chemical factories. It can be used to make couches and mattresses that are fire-resistant. The chemical formula for bromine is Br2. | closed choice | grade8 | 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 bromine 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 bromine, Br2, contains one atomic symbol: ... |
Not supported with pagination yet | Which kind of place usually has larger yards? | [
"an urban area",
"a suburban area"
] | 1 | closed choice | grade2 | social science | geography | Geography | Compare urban, suburban, and rural areas | People around the world live in three main kinds of places: urban areas, suburban areas, and rural areas.
An urban area is a city. It has many people and businesses. The buildings are close to each other. The buildings are often tall and have many floors. Since there are so many people, traffic is usually bad. People w... | Suburban areas usually have larger yards. The buildings are farther apart. | |
Not supported with pagination yet | What do these two changes have in common?
water evaporating from a lake
building a tower out of magnetic blocks | [
"Both are chemical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are only physical changes."
] | 3 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Water evaporating from a lake is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed.
Building a tower out of magnetic blocks is a physical change. The blocks stick to each other to form a tower. But the blocks are ... | |
Not supported with pagination yet | What information supports the conclusion that Ian acquired this trait? | [
"Ian is most interested in American history.",
"Ian learned history by reading."
] | 1 | Read the description of a trait.
Ian knows a lot about history. | closed choice | grade6 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
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."
] | 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. | 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... | |
Not supported with pagination yet | What do these two changes have in common?
butter melting on a hot day
water vapor condensing on a bathroom mirror | [
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by heating."
] | 2 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
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 made of the same type of matter.
Water vapor condensing on a bathroom mirror is a change of state. So, it is a physical change. The water changes state... | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"sample B",
"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 | 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... | Each particle in the two samples has the same mass, but the particles in sample A have a higher average speed than the particles in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average kinetic energy, sampl... | |
What is the capital of Hawaii? | [
"Hilo",
"Juneau",
"Albany",
"Honolulu"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | What information supports the conclusion that Ernest inherited this trait? | [
"Ernest has freckles on his nose and shoulders.",
"Ernest's biological parents have freckles on their noses just as Ernest does.",
"Ernest and his biological mother have pale skin."
] | 1 | Read the description of a trait.
Ernest has freckles. | closed choice | grade7 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Which solution has a higher concentration of green particles? | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | 1 | The diagram below is a model of two solutions. Each green 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 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... | |
Which of the following could Isaiah's test show? | [
"which design would have the least traffic noise in the concert area",
"if at least 20% of the park would be shaded by trees in each design",
"which design would have the greatest distance between the concert area and the road"
] | 2 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The suitcase is pushing on Zachary.",
"The suitcase is pulling on Zachary."
] | 1 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
Zachary is pulling on a full suitcase. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | Zachary is pulling on the suitcase. So, Newton's third law tells you that the suitcase is pulling on Zachary. |
Not supported with pagination yet | Which figure of speech is used in this text?
It's an open secret that Jonathan is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"oxymoron",
"hyperbole"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Open secret is a contradiction, because open describes something that is freely or publicly known, and a secret is hidden. | |
Identify the question that Harold's experiment can best answer. | [
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?",
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Harold divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Harold ... | 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 Rhode Island? | [
"Albany",
"Providence",
"Newport",
"Cincinnati"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
Turner argues that American schools should offer foreign language classes at every level. I disagree. How could Turner not see the value of learning English? | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"appeal to nature: the assumption that natural things are always good"
] | 1 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Turner claims that Americans should stop learning English and only study foreign languages. However, this misrepresents Turner's argument. Turner only wants more foreign language instruction. He says nothing about eliminating English instruction. This illustrates a type of logical fallacy known as ... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
peddler - price | [
"paddle",
"play"
] | 1 | 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 play is between the guide words peddler - price, it would be found on that page. | |
Which is this organism's common name? | [
"Agalychnis callidryas",
"red-eyed tree frog"
] | 1 | This organism is a red-eyed tree frog. It is also called Agalychnis callidryas. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Agalychnis callidryas is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Agalychnis callidryas is the organism's scientific name. So, you know that red-eyed tree frog is the common name. | |
Not supported with pagination yet | What information supports the conclusion that Polly acquired this trait? | [
"Polly learned to speak two languages in school.",
"Polly's mother speaks one language."
] | 0 | Read the description of a trait.
Polly speaks two languages. | 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... | |
Select the organism in the same genus as the common kestrel. | [
"Bubo scandiacus",
"Ardea alba",
"Falco tinnunculus"
] | 2 | This organism is a common kestrel. Its scientific name is Falco tinnunculus. | 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 common kestrel's scientific name is Falco tinnunculus. The first word of its scientific name is Falco.
This organism and the common kestrel are in the same genus and the same species! Both organisms have the same scientific name, Falco tinnunculus.
Bubo scandiacus is in the genus Bubo. The first word of its scientifi... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"At lunchtime, Brian can often be found reading at his favorite café, where they provide unlimited coffee refills.",
"At lunchtime, Brian can often be found reading at his favorite café, where the servers provide unlimited coffee refills."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun they is used without its antecedent.
The first answer choice shows a possible correction for the vague pronoun reference. They has been replaced with the servers.
At lunchtime, Brian can often be found reading at his favorite café, where the serve... | |
What is the capital of New Hampshire? | [
"Manchester",
"Dover",
"Concord",
"Annapolis"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Concord is the capital of New Hampshire. | |||
Select the organism in the same species as the Ural owl. | [
"Pelecanus erythrorhynchos",
"Ardea cinerea",
"Strix uralensis"
] | 2 | This organism is a Ural owl. Its scientific name is Strix uralensis. | 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 Ural owl's scientific name is Strix uralensis.
Pelecanus erythrorhynchos does not have the same scientific name as a Ural owl. So, Strix uralensis and Pelecanus erythrorhynchos are not in the same species.
Ardea cinerea does not have the same scientific name as a Ural owl. So, Strix uralensis and Ardea cinerea are no... | |
What is the capital of Nebraska? | [
"Bismarck",
"Omaha",
"Lincoln",
"Saint Paul"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
What is the name of the colony shown? | [
"Maryland",
"North Carolina",
"Georgia",
"South Carolina"
] | 1 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is North Carolina. | |||
Not supported with pagination yet | Which logical fallacy is used in the text?
How could you be disappointed in the show Paranormal Proms? Over a million people watch that show every single week! | [
"false dichotomy: an argument that presents only two choices when more options exist",
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"hasty generalization: a broad claim based on too few observations"
] | 1 | 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 a television show can't be disappointing to someone because over a million people watch it every week. However, this isn't necessarily true. How someone feels may not be affected by how popular the show is. This illustrates a type of logical fallacy known as the bandwagon fallacy. | |
Which term matches the picture? | [
"fracture",
"cleavage"
] | 1 | Read the text.
"Cleavage" and "fracture" refer to the different ways that minerals can break. Cleavage occurs when a mineral breaks and forms flat planes or surfaces. These surfaces are smooth and often reflective. Minerals break cleanly along cleavage planes because there are weak points in the mineral's structure.
Wh... | closed choice | grade6 | language science | vocabulary | Context clues | Determine the meaning of domain-specific words with pictures | Cleavage occurs when a break produces smooth, shiny planes. | ||
Which material is this milk carton made of? | [
"concrete",
"plastic"
] | 1 | closed choice | grade2 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the milk carton.
The milk carton is made of plastic.
Some milk cartons are made of cardboard that is covered with wax. The wax keeps the milk from soaking into the cardboard. | ||
Not supported with pagination yet | Using only these supplies, which question can Amelia investigate with an experiment? | [
"Do candles with thick wicks or with thin wicks produce more smoke?",
"Do scented candles or unscented candles produce more smoke?",
"Do large candles or small candles produce more smoke?"
] | 0 | Amelia 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 | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Select the organism in the same species as the Amazon tree boa. | [
"Corallus hortulanus",
"Python bivittatus",
"Lacerta agilis"
] | 0 | This organism is an Amazon tree boa. Its scientific name is Corallus hortulanus. | 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... | An Amazon tree boa's scientific name is Corallus hortulanus.
Lacerta agilis does not have the same scientific name as an Amazon tree boa. So, Corallus hortulanus and Lacerta agilis are not in the same species.
Python bivittatus does not have the same scientific name as an Amazon tree boa. So, Corallus hortulanus and Py... | |
Which ocean is highlighted? | [
"the Southern Ocean",
"the Indian Ocean",
"the Arctic Ocean",
"the Atlantic Ocean"
] | 1 | closed choice | grade8 | 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 Indian Ocean. | ||
What is the name of the colony shown? | [
"Massachusetts",
"Connecticut",
"New York",
"Kentucky"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Massachusetts.
The Massachusetts Colony included land that would later become the state of Maine. Maine was never its own colony. | |||
Not supported with pagination yet | What information supports the conclusion that Jeffrey inherited this trait? | [
"Jeffrey and his father both have dark hair.",
"Jeffrey's parents have pale skin. They passed down this trait to Jeffrey."
] | 1 | Read the description of a trait.
Jeffrey has pale skin. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which material is this tile made of? | [
"clay",
"cardboard"
] | 0 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the tile.
The tile is made of clay.
This tile is made of a type of clay called terra cotta. Terra cotta tiles have a brownish-red color. Terra cotta means "baked earth" in Italian. | ||
Identify the question that Jeanette's experiment can best answer. | [
"Do the insides of white boxes get hotter than the insides of black boxes when the boxes are left in the sun?",
"Do the temperatures inside boxes depend on the sizes of the boxes?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Jeanette glued lids onto 16 cardboard shoe boxes of equal size. She painted eight of the boxes black and eight of the boxes white. Jeanette made a small hole in the side of each box and then stuck a thermometer partiall... | closed choice | grade6 | 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 | Using only these supplies, which question can Judy investigate with an experiment? | [
"Does a rubber inner tube sled go faster down a small hill or down a big hill?",
"Does a rubber inner tube sled or a plastic sled go faster down a hill?",
"Does a plastic sled or a wooden sled go down a hill faster?"
] | 1 | Judy is sledding with her friends. She notices that some of them go faster down the sledding hill. She wonders what factors affect sledding speed. So, she decides to design an experiment. She has the following supplies available:
access to a small snow-covered hill at the park
a small plastic sled
a large plastic sled
... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
What is the expected ratio of offspring that have Thomsen disease to offspring that do not have Thomsen disease? Choose the most likely ratio. | [
"2:2",
"1:3",
"3:1",
"4:0",
"0:4"
] | 0 | This passage describes the Thomsen disease trait in humans:
Thomsen disease is a condition that causes temporary muscle stiffness. When a human with Thomsen disease first contracts a resting muscle, the muscle is slow to relax and may stay contracted for a while. But after repeated use, the muscle can contract and rela... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring that do or do not have Thomsen disease, consider whether each phenotype is the dominant or recessive allele's version of the Thomsen disease trait. The question tells you that the M allele, which is for having Thomsen disease, is dominant over the m ... | |
Which of the following organisms is the decomposer in this food web? | [
"beaver",
"gray fox",
"persimmon tree",
"parasol fungus"
] | 3 | Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade7 | natural science | biology | Ecological interactions | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Decomposers help break down dead organisms into simpler matter, such as nutrients. These nutrients can then help plants and other organisms grow. In a food web, there is an arrow pointing from another organism to a decomposer. There are no arrows pointing from a decomposer to another organism.
The bolete fungus does no... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"\"This morning, it said that Leah Scott won the mayoral election in Yardley,\" Steven remarked to his sister.",
"\"This morning, the newspaper said that Leah Scott won the mayoral election in Yardley,\" Steven remarked to his sister."
] | 0 | closed choice | grade10 | 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 first answer choice contains a vague pronoun reference. The pronoun it is used without its antecedent.
The second answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the newspaper.
"This morning, the newspaper said that Leah Scott won the mayoral election in Yardley,... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
are - athlete | [
"astound",
"alley"
] | 0 | 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 astound is between the guide words are - athlete, it would be found on that page. | |
Is popcorn a solid, a liquid, or a gas? | [
"a gas",
"a solid",
"a liquid"
] | 1 | closed choice | grade4 | natural science | physics | States of matter | Identify and sort solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Popcorn is a solid. You can tear a piece of popcorn into smaller pieces. But each smaller piece will still have a size and shape of its own. | ||
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 south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
Not supported with pagination yet | What do these two changes have in common?
baking a loaf of bread
cells using oxygen to break down sugar | [
"Both are caused by heating.",
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by cooling."
] | 2 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Baking a loaf of bread is a chemical change. The type of matter in the dough changes when it is baked. The dough turns into bread!
Cells using oxygen to break down sugar is a chemical change. When sugar is broken down, it forms carbon dioxide and water.
Step 2: Look at each answer choic... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are the same as in Pair 2. The distance between the magnets is also the same.
So, the magnitude of the magnetic force is the same in both pairs. | |
Which of these continents does the equator intersect? | [
"Europe",
"Australia",
"Africa"
] | 2 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The equator is the line at 0° latitude. It intersects Africa. It does not intersect Europe or Australia. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
ninth - numeral | [
"nor",
"nature"
] | 0 | closed choice | 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 nor is between the guide words ninth - numeral, it would be found on that page. | |
Not supported with pagination yet | Which correctly shows the title of a magazine? | [
"\"Jack and Jill\"",
"***Jack and Jill***"
] | 1 | closed choice | grade8 | 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 magazine should be in italics.
The correct title is **Jack and Jill**. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
they - trail | [
"tuna",
"tone"
] | 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 tone is between the guide words they - trail, it would be found on that page. | |
Which of these states is farthest east? | [
"Georgia",
"Texas",
"Nevada",
"Illinois"
] | 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 east arrow is pointing. Georgia is farthest east. | ||
Which animal's mouth is also adapted to eat plant matter? | [
"pronghorn",
"Nile crocodile"
] | 0 | Impalas are herbivores, or plant eaters. They eat grass and leaves. The 's mouth is adapted to grind up and eat plant matter.
Figure: impala. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's mouth is one example of an adaptation. Animals' mouths can be adapted in different ways. For example, a large mouth with sharp teeth might help an animal tear ... | Look at the picture of the impala.
The impala has long jaws and flat teeth. Its mouth is adapted to eat plant matter. The long jaws can help the impala reach leaves and grass. The flat teeth can help it cut and grind up the food into soft pieces it can swallow.
Now look at each animal. Figure out which animal has a sim... | |
Not supported with pagination yet | Which figure of speech is used in this text?
The salesperson tried hard to convince Preston that the jacket was a good buy; after all, it was made of genuine imitation leather. | [
"hyperbole",
"oxymoron"
] | 1 | 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 an oxymoron, a joining of two seemingly contradictory terms.
Genuine imitation leather is a contradiction, because genuine means real, and imitation means fake or synthetic. | |
Which animal's feet are also adapted for swimming? | [
"California gull",
"New Zealand falcon"
] | 0 | Black-bellied whistling ducks live near lakes and streams in North America. They find most of their food in shallow water. The feet of the are adapted for swimming.
Figure: black-bellied whistling duck. | 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.
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 black-bellied whistling duck.
The black-bellied whistling duck has webbed feet. Its feet are adapted for swimming. As it swims, the black-bellied whistling duck uses its webbed feet to push itself through water.
Now look at each animal. Figure out which animal has a similar adaptation.
The Ca... | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
The tired woman fell into bed like a sack of potatoes. | [
"simile",
"metaphor"
] | 0 | closed choice | grade4 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | The tired woman fell into bed like a sack of potatoes.
The words woman and sack of potatoes are compared using the word like. So, the sentence uses a simile. | |
What is the capital of New Jersey? | [
"Wichita",
"Trenton",
"Knoxville",
"Providence"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Trenton is the capital of New Jersey. | |||
Which term matches the picture? | [
"convex lens",
"concave lens"
] | 0 | Read the text.
The shape of a lens determines how it bends light that passes through it. A concave lens, for example, is thinner in the center than it is at the edges. This results in light rays diverging, or bending away from one another, after passing through. Concave lenses are used in TV projectors to spread out li... | closed choice | grade6 | language science | vocabulary | Context clues | Determine the meaning of domain-specific words with pictures | A magnifying glass has a convex lens, which helps make objects look larger when placed close enough. | ||
Which statement is true about seeds? | [
"A plant's flowers make seeds.",
"A plant's fruit makes seeds."
] | 0 | A tomato plant can grow seeds. | closed choice | grade4 | natural science | biology | Plants | Describe and construct flowering plant life cycles | Many plants have flowers. These plants can use their flowers to reproduce, or make new plants like themselves. How do plants use their flowers to reproduce?
First, the male part of the flower makes pollen, and the female part makes eggs. Animals, wind, or water can move pollen. Pollination is what happens when pollen i... | Flowers make seeds. After a flower is pollinated, male cells from the pollen combine with eggs. This is called fertilization. The fertilized eggs grow into seeds.
The fruit can grow around the seeds. But the fruit does not make seeds. Both the fruit and the seeds grow from parts of the flower. | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"15°C",
"40°C",
"55°C"
] | 1 | closed choice | grade3 | natural science | units-and-measurement | Weather and climate | Read a thermometer | A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °.
Some thermometers measure temperature in degrees Celsius (°C). Celsius is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Celsius ... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid lines up with 40. So, the temperature is 40°C. | |
Is Sequoia sempervirens made up of many cells? | [
"no",
"yes"
] | 1 | This organism is Sequoia sempervirens. It is a member of the plant kingdom.
Sequoia sempervirens is commonly called a coast redwood. The tallest known tree in the world is a coast redwood tree. It is 379 feet tall and over 700 years old! | yes or no | grade4 | natural science | biology | Classification | Describe, classify, and compare kingdoms | In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms.
Organisms in each kingdom have specific traits. The table below sho... | Sequoia sempervirens is a plant. Plants are made up of many cells. | |
Select the fish below. | [
"cobra",
"tortoise",
"sea turtle",
"seahorse"
] | 3 | Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A Banggai cardinalfish is an example of a fish. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A seahorse is a fish. It lives underwater. It has fins, not limbs.
Seahorses live in shallow, warm water. They can use their tails to hold on to plants.
A tortoise is a reptile. It has scaly, waterproof skin.
A tortoise's shell protects it from predators. When a tortoise feels threatened, it can pull its head and legs ... | |
Not supported with pagination yet | What do these two changes have in common?
rust forming on a bicycle frame
newly poured concrete becoming hard | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes."
] | 3 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Rust forming on a bicycle frame is a chemical change. Oxygen in the air reacts with iron in the bicycle frame. The outside of the frame turns into a different type of matter called rust. Rust is reddish-brown and falls apart easily.
Concrete hardening is a chemical change. The chemicals... | |
Is corundum a mineral? | [
"no",
"yes"
] | 1 | Corundum has the following properties:
pure substance
naturally occurring
solid
fixed crystal structure
not made by living things | yes or no | grade6 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Corundum has all the properties of a mineral. So, corundum is a mineral. |
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.