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Not supported with pagination yet | Which figure of speech is used in this text?
Erin Brockovich, a single mother with no legal training, helped win a daunting court battle against a Goliath energy company. | [
"allusion",
"onomatopoeia"
] | 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 an allusion, a brief reference to someone or something well known.
Goliath alludes to the giant warrior in the Bible who was defeated by a much smaller opponent, David. | |
Which continent is highlighted? | [
"Antarctica",
"Asia",
"Africa",
"North America"
] | 0 | closed choice | grade8 | social science | geography | Physical Geography | Oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Antarctica. | ||
What is the capital of Colorado? | [
"Helena",
"Denver",
"Colorado Springs",
"Kansas City"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Denver is the capital of Colorado. | |||
Which of the following was a dependent variable in this experiment? | [
"the amount of lemon juice added to the apple slices",
"the number of apple slices that turned brown"
] | 1 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Leon's daughter complained that the in her lunchbox turned brown by lunchtime. Leon read that when are exposed to air, oxygen in the air reacts with the cut surface of the , turning them brown. Leon's favori... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify independent and dependent variables | Experiments have variables, or parts that change. You can design an experiment to find out how one variable affects another variable. For example, imagine that you want to find out if fertilizer affects the number of tomatoes a tomato plant grows. To answer this question, you decide to set up two equal groups of tomato... | ||
Not supported with pagination yet | Select the solid. | [
"fruit punch",
"garbage can",
"wet paint",
"vinegar"
] | 1 | 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... | Wet paint is a liquid. A liquid takes the shape of any container it is in. If you pour wet paint out of a can, the paint will change shape. But the wet paint will still take up the same amount of space.
Fruit punch is a liquid. A liquid takes the shape of any container it is in. If you pour fruit punch into a cup, the ... | |
Which i in row A? | [
"the fire department",
"the grocery store",
"the police department",
"the library"
] | 0 | closed choice | grade3 | social science | geography | Geography | Use a letter-number grid | A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers. | The fire department is in row A. | ||
Not supported with pagination yet | Which text uses the word nauseous in its traditional sense? | [
"Shivani couldn't tolerate the nauseous odor emanating from the landfill, so she rolled up her car windows as she drove past.",
"The odor emanating from the landfill made Shivani so nauseous that she had to roll up the car windows as she drove past."
] | 0 | closed choice | grade9 | 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 nauseous in its traditional sense: causing disgust or nausea.
Shivani couldn't tolerate the nauseous odor emanating from the landfill, so she rolled up her car windows as she drove past.
The second text uses nauseous in its nontraditional sense: feeling disgusted or nauseated.
The odor emanating fro... | |
Which continent is highlighted? | [
"Europe",
"South America",
"Antarctica",
"Australia"
] | 0 | closed choice | grade4 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Europe. | ||
Not supported with pagination yet | Which object has the most thermal energy? | [
"a blueberry muffin at a temperature of 32°C",
"a blueberry muffin at a temperature of 24°C",
"a blueberry muffin at a temperature of 19°C"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade4 | 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 ... | All three blueberry muffins have the same mass but different temperatures. Since the 32°C muffin is the hottest, it has the most thermal energy. |
Which better describes the Pisgah National Forest ecosystem? | [
"It has soil that is rich in nutrients. It also has only a few types of trees.",
"It has warm, dry summers. It also has many different types of trees."
] | 0 | Figure: Pisgah National Forest.
The Pisgah National Forest is a temperate deciduous forest ecosystem in western North Carolina. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, the Pisgah National Forest has soil that is rich in nutrients. It also has only a few types of trees. | |
Based on the time line, which book was published later? | [
"The Horse and His Boy",
"The Silver Chair"
] | 0 | This time line shows the publication dates of the books in The Chronicles of Narnia by C. S. Lewis. | closed choice | grade6 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | A time line shows the order of events by placing them along a line. This time line shows the publication dates of the books in The Chronicles of Narnia by C. S. Lewis.
Look at how the events are ordered on the time line. Books that were published earlier are shown to the left. Books that were published later are shown ... | |
Not supported with pagination yet | What does the metaphor in this text suggest?
He reads incessantly; new ideas are food for his mind. | [
"He is never satisfied with what he reads.",
"He is stimulated by new ideas."
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A metaphor compares two things that are not actually alike without using like or as.
The snow formed a blanket over the town. | The text uses a metaphor, comparing two things that are not actually alike without using like or as.
The metaphor ideas are food suggests that he is stimulated by new ideas. Food is energizing to the body, just as ideas are energizing to the mind. | |
What is the name of the colony shown? | [
"Rhode Island",
"Ohio",
"Connecticut",
"Maine"
] | 2 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
Not supported with pagination yet | What information supports the conclusion that Nate inherited this trait? | [
"Nate likes to wear a blue sweater to match his blue eyes.",
"Nate's mother has blue eyes. She passed this trait down to Nate."
] | 1 | Read the description of a trait.
Nate has blue eyes. | 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.... | |
Which country is highlighted? | [
"Saint Kitts and Nevis",
"Saint Lucia",
"Grenada",
"Antigua and Barbuda"
] | 0 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Kitts and Nevis. | |||
Not supported with pagination yet | Which tense does the sentence use?
The Pattons will stay at an inn on the island. | [
"past tense",
"present tense",
"future tense"
] | 2 | closed choice | grade3 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, stay. The verb tells you about something that is going to happen. | |
Select the chemical formula for this molecule. | [
"NH3",
"NH",
"H",
"H3"
] | 0 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Match chemical formulas to ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | N is the symbol for nitrogen. H is the symbol for hydrogen. This ball-and-stick model shows a molecule with one nitrogen atom and three hydrogen atoms.
The chemical formula will contain the symbols N and H. There is one nitrogen atom, so N will not have a subscript. There are three hydrogen atoms, so H will have a subs... | ||
What is the capital of Vermont? | [
"Burlington",
"Buffalo",
"Topeka",
"Montpelier"
] | 3 | 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 | Select the living thing. | [
"stop sign",
"van",
"rhinoceros beetle",
"house"
] | 2 | closed choice | grade4 | natural science | biology | Classification | Identify living and nonliving things | All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All... | A rhinoceros beetle is a living thing.
Rhinoceros beetles grow and respond to their environment. They need food and water. Rhinoceros beetles are made up of many cells.
A stop sign is not a living thing.
Stop signs do not have all of the traits of living things. They do not grow or respond to their environment. They do... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Mrs. Herman's phone rang just as she finished brewing Amy a cup of tea.",
"Just as Mrs. Herman finished brewing Amy a cup of tea, her phone rang."
] | 1 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun her could refer to Mrs. Herman's or Amy's.
Just as Mrs. Herman finished brewing Amy a cup of tea, her phone rang.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning ... | |
Not supported with pagination yet | Is this a run-on sentence?
In 1941, automaker Henry Ford wrote a letter to Indian leader Mahatma Gandhi to express his admiration, in response, Gandhi sent Ford a manual spinning wheel. | [
"yes",
"no"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify run-on sentences | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma s... | This is a run-on sentence. It is a comma splice formed from two sentences run together, joined by just a comma.
In 1941, automaker Henry Ford wrote a letter to Indian leader Mahatma Gandhi to express his admiration, in response, Gandhi sent Ford a manual spinning wheel.
Here is one way to fix the run-on sentence:
In 19... | |
Not supported with pagination yet | Based on this information, what is Sage's phenotype for the coat pattern trait? | [
"white spots",
"aa"
] | 0 | In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele A is for solid coloring, and the allele a is for white spots.
Sage, a cow from this group, has white spots. Sage has two alleles for white spots. | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Sage's observable version of the coat pattern trait is white spots. So, Sage's phenotype for the coat pattern trait is white spots. |
What is the capital of Nevada? | [
"Reno",
"Sacramento",
"Carson City",
"Las Vegas"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Carson City is the capital of Nevada. | |||
During this time, thermal energy was transferred from () to (). | [
"each cake . . . the surroundings",
"the surroundings . . . each cake"
] | 0 | Jason baked two identical cakes. When he took them out of the oven, he left one cake in its pan and took the other cake out of its pan to put it on a plate. This table shows how the temperature of each cake changed over 5minutes. | closed choice | grade8 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each cake decreased, which means that the thermal energy of each cake decreased. So, thermal energy was transferred from each cake to the surroundings. | |
Which solution has a higher concentration of green particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 0 | 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... | |
Not supported with pagination yet | Which text uses the word travesty in its traditional sense? | [
"Darnell realized that his essay about the Space Race was a bit inaccurate, but he still thought it a travesty that such an entertaining essay should receive a poor grade.",
"Darnell's ill-researched essay about the Space Race received a poor grade because it presented such a travesty of the actual historical eve... | 1 | closed choice | grade11 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses travesty in its traditional sense: a ridiculous imitation; a parody.
Darnell's ill-researched essay about the Space Race received a poor grade because it presented such a travesty of the actual historical events.
The second text uses travesty in its nontraditional sense: a disappointment or a traged... | |
Is the following statement about our solar system true or false?
50% of the planets are made mainly of gas. | [
"true",
"false"
] | 1 | 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 two out of the eight planets are made mainly of gas. So, one-fourth, or 25%, of the planets are made mainly of gas. | |
What is the name of the colony shown? | [
"New Hampshire",
"Kentucky",
"Vermont",
"Wisconsin"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
What is the probability that a chicken produced by this cross will be heterozygous for the leg color gene? | [
"1/4",
"3/4",
"4/4",
"0/4",
"2/4"
] | 4 | In a group of chickens, some individuals have white legs and others have yellow legs. In this group, the gene for the leg color trait has two alleles. The allele for yellow legs (l) is recessive to the allele for white legs (L).
This Punnett square shows a cross between two chickens. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring genotypes: homozygous or heterozygous?
How do you determine whether an organism is homozygous or heterozygous for a gene? Look at the alleles in the organism's genotype for that gene.
An organism with two identical alleles for a gene is homozygous for that gene.
If both alleles are dominant, the organism is h... | ||
Not supported with pagination yet | Which tense does the sentence use?
We will pack our suitcases in the morning. | [
"past tense",
"present tense",
"future tense"
] | 2 | closed choice | grade4 | 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, pack. The verb tells you about something that is going to happen. | |
What is the capital of Utah? | [
"Salt Lake City",
"Salem",
"Carson City",
"Sacramento"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Salt Lake City is the capital of Utah. | |||
Not supported with pagination yet | What information supports the conclusion that Joel acquired this trait? | [
"Joel's neighbor taught him how to repair a kite.",
"Joel's friend taught him how to fly a kite.",
"Joel likes to fly a kite with his younger brother."
] | 1 | Read the description of a trait.
Joel knows how to fly a kite. | 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 rhetorical appeal is primarily used in this ad? | [
"logos (reason)",
"pathos (emotion)",
"ethos (character)"
] | 2 | closed choice | grade12 | language science | writing-strategies | Persuasive strategies | Identify appeals to ethos, pathos, and logos in advertisements | The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals.
Appeals to ethos, or character, show the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe... | The ad appeals to ethos, or character, by emphasizing that highly respected companies trust Novanoid's cloud computing service. | ||
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"The Adventures of ichabod and mr. Toad",
"The Adventures of Ichabod and Mr. Toad"
] | 1 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The words of and and are not important, so they should not be capitalized.
The correct title is The Adventures of Ichabod and Mr. Toad. | |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"an eager person",
"an impatient person"
] | 1 | closed choice | grade4 | 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... | An impatient person has a more negative connotation. An impatient person is often rude, pushy, or demanding. An eager person is excited and happy. | |
Which of these states is farthest east? | [
"Montana",
"Wisconsin",
"Nebraska",
"Utah"
] | 1 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Wisconsin is farthest east. | ||
Not supported with pagination yet | What information supports the conclusion that Dakota acquired this trait? | [
"Dakota's scar was caused by an accident. She cut her arm when she fell off her bicycle.",
"Dakota's scar is on her right elbow. Her father also has a scar on his right elbow.",
"Dakota's sister has a bruise from falling on her elbow."
] | 0 | Read the description of a trait.
Dakota has a scar on her right elbow. | 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 statement is true about the average monthly temperature in New York City? | [
"November is warmer than May.",
"January and February are the coldest months of the year.",
"July, August, and September are colder than the other months of the year."
] | 1 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location.
A line graph can be used t... | To describe the average temperature trends in New York City, look at the graph.
Choice "Feb" is incorrect.
Choice "May" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Sep" is incorrect.
Choice "Nov" is incorrect.
Choice "Jan" is incorrect.
Choice "January and February are the coldest months... | |
Not supported with pagination yet | Which is a run-on sentence? | [
"Derek's favorite season is fall, it is cool outside.",
"Darkness comes quickly on long winter nights."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma.
I knocked on the door it opened.
It started raining, we ran inside.
To fix a run-on ... | Derek's favorite season is fall, it is cool outside is a run-on sentence. It has two sentences that are joined by just a comma: Derek's favorite season is fall and It is cool outside. | |
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 1 | Figure: Afghanistan.
Afghanistan is a mountainous country. The temperatures were well below freezing for 15 of the 31 days in January.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | 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.
Afghanistan is a mountainous country. The temperatures were well below freezing for 15 of the 31 days in January.
The underlined part of the passage tells you about the temperatures measured during January in Afghanistan. This passage describes the atmosphere at a certain place and time. So,... | |
What is the expected ratio of offspring with white wool to offspring with black wool? Choose the most likely ratio. | [
"4:0",
"3:1",
"1:3",
"2:2",
"0:4"
] | 0 | In a group of sheep, some individuals have white wool and others have black wool. In this group, the gene for the wool color trait has two alleles. The allele for black wool (l) is recessive to the allele for white wool (L).
This Punnett square shows a cross between two sheep. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with white wool or black wool, consider whether each phenotype is the dominant or recessive allele's version of the wool color trait. The question tells you that the l allele, which is for black wool, is recessive to the L allele, which is for white ... | |
Not supported with pagination yet | How long does it take to do the laundry? | [
"1 hour",
"1 minute"
] | 0 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to do the laundry is 1 hour.
1 minute is too fast. |
Which of the following could Myra and Jenna's test show? | [
"if a new batch of concrete was firm enough to use",
"if the concrete from each batch took the same amount of time to dry"
] | 0 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which property do these three objects have in common? | [
"yellow",
"flexible",
"shiny"
] | 2 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A shiny object reflects a lot of light. You can usually see your reflection in a shiny object. All three objects are shiny.
A flexible object can be folded or bent without breaking easily. The shield and the sapphire are not flexible.
Yellow is a col... | |
Which property do these three objects have in common? | [
"rough",
"colorful",
"transparent"
] | 1 | 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 rough object feels scratchy when you touch it. The crayons and the parachute are not rough.
You can see clearly through a transparent object. None of the objects are transparent.
A colorful object has one or more bright colors. All three objects ar... | |
Select the organism in the same species as the lion's mane jellyfish. | [
"Aurelia aurita",
"Cyanea capillata",
"Aequorea victoria"
] | 1 | This organism is a lion's mane jellyfish. Its scientific name is Cyanea capillata. | 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 lion's mane jellyfish's scientific name is Cyanea capillata.
Aurelia aurita does not have the same scientific name as a lion's mane jellyfish. So, Cyanea capillata and Aurelia aurita are not in the same species.
Aequorea victoria does not have the same scientific name as a lion's mane jellyfish. So, Cyanea capillata ... | |
Not supported with pagination yet | Which is a complete sentence? | [
"The farmers pick the corn and beans.",
"That awful noise from the large factory."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | The farmers pick the corn and beans is a complete sentence. The subject is the farmers, and the verb is pick. | |
Not supported with pagination yet | What does the idiom in this text suggest?
Jackie submitted her suggestions to Reid; now the ball is in his court. | [
"Reid needs to act next.",
"Reid has some difficult work to do."
] | 0 | closed choice | grade6 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom the ball is in his court suggests that Reid needs to act next. In tennis, when the ball is in a player's court, it is that person's turn. | |
What is the probability that a dachshund dog produced by this cross will be homozygous dominant for the fur texture gene? | [
"1/4",
"4/4",
"3/4",
"0/4",
"2/4"
] | 3 | In a group of dachshund dogs, some individuals have rough fur and others have soft fur. In this group, the gene for the fur texture trait has two alleles. The allele for rough fur (F) is dominant over the allele for soft fur (f).
This Punnett square shows a cross between two dachshund dogs. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring genotypes: homozygous or heterozygous?
How do you determine whether an organism is homozygous or heterozygous for a gene? Look at the alleles in the organism's genotype for that gene.
An organism with two identical alleles for a gene is homozygous for that gene.
If both alleles are dominant, the organism is h... | ||
Not supported with pagination yet | Local governments serve which places? | [
"countries",
"towns, cities, and counties",
"states"
] | 1 | closed choice | grade3 | social science | civics | Government | Local government | Local governments serve counties, cities, and towns.
What is a county?
Most states are divided into areas called counties. For example, here is a map of the counties in Florida:
Two states have different names for counties. Louisiana is divided into parishes. Alaska is divided into boroughs.
In most states, county gove... | ||
Which of the following could Pedro's test show? | [
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"if the sample fabric would absorb one drop of water in less than one second",
"how much athletes would sweat in the fabric"
] | 0 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | 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 | Which word would you find on a dictionary page with the following guide words?
ahead - alas | [
"ailing",
"are"
] | 0 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since ailing is between the guide words ahead - alas, it would be found on that page. | |
Not supported with pagination yet | Assume all other forces on Austin are balanced. Which statement describes the forces on Austin? | [
"The forces are unbalanced, so there is a net force on Austin.",
"The forces are balanced, so there is no net force on Austin."
] | 1 | Austin is standing on a diving board at the pool. Earth's gravity is pulling down on Austin with a force of 400N. The diving board is pushing up on Austin with a force of 400N. | 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 Austin, look at the forces:
Earth's gravity is pulling Austin down with a force of 400 N.
The diving board is pushing Austin up with a force of 400 N.
The forces are in opposite directions, and the forces have the same magnitude: 400 N. This means that the forces are balanced, so... |
Which better describes the Eastern Siberian Taiga ecosystem? | [
"It has short, cool summers. It also has soil that is rich in nutrients.",
"It has long, cold winters. It also has soil that is poor in nutrients."
] | 1 | Figure: East Siberian Taiga.
The Eastern Siberian Taiga is a taiga ecosystem in Russia. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A taiga is a type of ecosystem. Taigas have the following features: long, cold winters and short, cool summers, many evergreen trees, and soil that is poor in nutrients. So, the Eastern Siberian Taiga has long, cold winters. It also has soil that is poor in nutrients. | |
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 shapes. | closed choice | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magnitude of the magnetic force between them is greater.
There is a smaller distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is greater in Pair 2 than in Pair 1. | |
Not supported with pagination yet | Which is a sentence fragment? | [
"The queen's beautiful crown and colorful costume.",
"The bread has flour, butter, salt, and water in it."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | The queen's beautiful crown and colorful costume is a sentence fragment. It is missing a verb. | |
Not supported with pagination yet | Christmas is a holiday in which religion? | [
"Islam",
"Judaism",
"Hinduism",
"Christianity"
] | 3 | closed choice | grade2 | social science | culture | Cultural celebrations | Christmas | Christmas is a holiday in Christianity.
People who believe in Christianity are called Christians. There are Christians all over the world. Christmas is celebrated in many different countries. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
I can resist everything except temptation.
—Oscar Wilde, Lady Windermere's Fan | [
"paradox",
"oxymoron"
] | 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 paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth.
I can resist everything except temptation at first appears to be contradictory, as resisting something requires not giving in to temptation. However, it contains some truth: it's easy to resist ... | |
Which country is highlighted? | [
"Tuvalu",
"Kiribati",
"the Marshall Islands",
"Australia"
] | 1 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Kiribati. | |||
What can Alexa and Jason trade to each get what they want? | [
"Jason can trade his almonds for Alexa's tomatoes.",
"Alexa can trade her tomatoes for Jason's sandwich.",
"Alexa can trade her tomatoes for Jason's broccoli.",
"Jason can trade his broccoli for Alexa'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.
Alexa and Jason open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Alexa wanted br... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Alexa wanted broccoli in her lunch and Jason was hoping for tomatoes. Look at the labeled part of the images.
Alexa has tomatoes. Jason 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 | Suppose Susan decides to join the Photography Club. Which result would be a cost? | [
"Susan will have more fun in the Photography Club than she would have had in the Theater Club.",
"Susan will spend more time in the Photography Club than she would have spent in the Theater Club."
] | 1 | Susan is deciding whether to join the Photography Club or the Theater Club at school. She wants the club she joins to be fun. But she doesn't want it to take up too much time. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Susan wants or needs:
Susan will spend more time in the Photography Club than she would have spent in the Theater Club. |
Which animal's mouth is also adapted for gnawing? | [
"silky anteater",
"brown rat"
] | 1 | Marmots eat plant matter, such as leaves, stems, and seeds. They eat by biting off small pieces at a time, or gnawing. The 's mouth is adapted for gnawing.
Figure: marmot. | 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 marmot.
The marmot has large front teeth. Its mouth is adapted for gnawing. The large front teeth can help the marmot break off pieces of food that it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The brown rat has large front teeth. Its mouth is adap... | |
Not supported with pagination yet | Which drop of honey has a lower temperature? | [
"the drop of honey with less thermal energy",
"the drop of honey with more thermal energy"
] | 0 | Two drops of honey are identical except for their thermal energies. | closed choice | grade5 | natural science | physics | Heat and thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two drops of honey are made of the same material and have the same mass. So, the drop of honey with less thermal energy has a lower temperature. |
Which country is highlighted? | [
"Saint Vincent and the Grenadines",
"Jamaica",
"Trinidad and Tobago",
"Grenada"
] | 3 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Grenada. | |||
Based on the arrows, which of the following living things is a consumer? | [
"sea cucumber",
"kelp"
] | 0 | Below is a food web from an ocean ecosystem. The ecosystem is in Monterey Bay, off the coast of California.
A food web is a model that shows how the matter eaten by living things moves through an ecosystem. The arrows show how matter moves through the food web. | closed choice | grade3 | natural science | biology | Ecosystems | Interpret food webs | A food web is a model.
Models can make things in nature easier to understand. Models can be simpler than the things they represent. A food web is a model that shows where living things in an ecosystem get their food. If a food web showed every living thing in an ecosystem, the food web would be hard to understand. So, ... | Consumers eat other living things. So, there are arrows in a food web that point from other living things to consumers.
The sea cucumber has an arrow pointing to it from the plainfin midshipman. So, the sea cucumber is a consumer.
The kelp does not have any arrows pointing to it. So, the kelp is a producer, not a consu... | |
Not supported with pagination yet | What does the allusion in this text suggest?
With the gutters clogged and water rising in the streets, Kaylee, who was watching the storm from her window, commented, "We're going to need an ark to get out of here." | [
"Kaylee wants to protect her possessions.",
"Kaylee thinks the storm will cause major flooding."
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An allusion is a brief reference to something or someone well known, often from history or literature.
"I'd better get home before I turn into a pumpkin!" Lila remarked. | The text uses an allusion, a brief reference to someone or something well known.
The allusion to an ark suggests that Kaylee thinks the storm will cause major flooding. In the Bible, it rains for forty days and forty nights; Noah, his family, and animals of every species survive the great flood in an ark that he builds... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Erik remarked that the new book on anti-gravity was impossible to put down. | [
"alliteration",
"pun"
] | 1 | 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 a pun, a word or phrase that humorously suggests more than one meaning.
Impossible to put down means that the book is so good that it is hard to stop reading. The phrase impossible to put down is also a joke about anti-gravity: if gravity pulls things down, perhaps anti-gravity does the opposite and makes... | |
Not supported with pagination yet | Which is a complex sentence? | [
"In June, Lexi and Todd will graduate with honors from Yardley High School.",
"Jonathan will lend us money for the tickets if we promise to repay him by the end of the year."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction if.
Jonathan will lend us money for the tickets if we promise to repay him by the end of the year. | |
During this time, thermal energy was transferred from () to (). | [
"each battery . . . the surroundings",
"the surroundings . . . each battery"
] | 0 | Two friends bought phones that cost different amounts but had identical batteries. After using the phones for a while, both friends had to turn them off to let the batteries cool. This table shows how the temperature of each battery changed over 5minutes. | closed choice | grade8 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each battery decreased, which means that the thermal energy of each battery decreased. So, thermal energy was transferred from each battery to the surroundings. | |
Not supported with pagination yet | Which correctly shows the title of a short story? | [
"\"Polly Helps a Friend\"",
"\"polly Helps a friend\""
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word a is not important, so it should not be capitalized.
The correct title is "Polly Helps a Friend." | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Mr. Howell's class is so boring! Why are all literature classes so dull? | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"hasty generalization: a broad claim based on too few observations",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences"
] | 1 | closed choice | grade11 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that a single boring class indicates that all classes on the same topic are dull. However, this isn't necessarily true. This illustrates a type of logical fallacy known as a hasty generalization. | |
Which country is highlighted? | [
"Cuba",
"Haiti",
"The Bahamas",
"Saint Kitts and Nevis"
] | 1 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Haiti.
Does Haiti have any territorial disputes?
Haiti claims to own Navassa Island, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
Navassa Island is also claimed by the United States. The United States claimed the island in 18... | |||
Complete the text to describe the diagram.
Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium. | [
"to the right than to the left",
"to the left than to the right"
] | 0 | The diagram below shows a solution with one solute. Each solute particle is represented by a green ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles.
The diagram shows how the solution can change over time ... | closed choice | grade6 | natural science | chemistry | Solutions | Diffusion across membranes | In a solution, solute particles move and spread throughout the solvent. The diagram below shows how a solution can change over time. Solute particles move from the area where they are at a higher concentration to the area where they are at a lower concentration. This movement happens through the process of diffusion.
A... | Look at the diagram again. It shows you how the solution changed during the process of diffusion.
Before the solute particles reached equilibrium, there were 8 solute particles on the left side of the membrane and 2 solute particles on the right side of the membrane.
When the solute particles reached equilibrium, there... | |
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 1.",
"The magnitude of the magnetic force is greater in Pair 2.",
"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, but some of them are different 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.
Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are... | |
Which animal's mouth is also adapted for gnawing? | [
"nutria",
"raccoon"
] | 0 | s spend most of their life underground. They feed on plant roots and bulbs. Mole rats eat by biting off small pieces at a time, or gnawing. The mole rat's mouth is adapted for gnawing.
Figure: Podolsk mole rat. | 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 Podolsk mole rat.
The Podolsk mole rat has large front teeth. Its mouth is adapted for gnawing. The large front teeth can help the Podolsk mole rat break off pieces of food that it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The nutria has large fro... | |
Not supported with pagination yet | Select the vertebrate. | [
"common octopus",
"turkey vulture",
"hissing cockroach",
"praying mantis"
] | 1 | Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | closed choice | grade5 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | Like other octopuses, a common octopus is an invertebrate. It does not have a backbone. It has a soft body.
A praying mantis is an insect. Like other insects, a praying mantis is an invertebrate. It does not have a backbone. It has an exoskeleton.
A turkey vulture is a bird. Like other birds, a turkey vulture is a vert... |
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Jack perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project.",
"Before returning to the stockroom, Jack briefly perused the nails in the hardware aisle to see if anything needed to be restocked."
] | 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 peruse in its traditional sense: to examine in detail.
Jack perused the nails in the hardware aisle for almost an hour, trying to figure out which type would be best for his project.
The second text uses peruse in its nontraditional sense: to look through in a casual manner.
Before returning to the ... | |
Not supported with pagination yet | Is this a run-on sentence?
In 2004, the Cassini spacecraft arrived on Saturn and began photographing Saturn's moon Titan, revealing a number of lakes, rivers, and seas on the moon's frozen surface. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify run-on sentences | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma s... | This is not a run-on sentence. It is not formed from two sentences that have been run together without appropriate punctuation.
In 2004, the Cassini spacecraft arrived on Saturn and began photographing Saturn's moon Titan, revealing a number of lakes, rivers, and seas on the moon's frozen surface. | |
Not supported with pagination yet | Which soap bubble has a higher temperature? | [
"the soap bubble with less thermal energy",
"the soap bubble with more thermal energy"
] | 1 | Two soap bubbles are identical except for their thermal energies. | closed choice | grade6 | natural science | physics | Thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two soap bubbles are made of the same material and have the same mass. So, the soap bubble with more thermal energy has a higher temperature. |
Which animal's feet are also adapted for swimming? | [
"European beaver",
"African crowned eagle"
] | 0 | Red-eared sliders are a type of turtle. They are found in ponds, lakes, and rivers in many parts of North America. The feet of the are adapted for swimming.
Figure: red-eared slider. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the red-eared slider.
The red-eared slider has webbed feet. Its feet are adapted for swimming. As it swims, the red-eared slider uses its webbed feet to push itself through water.
Now look at each animal. Figure out which animal has a similar adaptation.
The European beaver has webbed feet. Its f... | |
Which of the following could Rosa's test show? | [
"if the new turbine could turn easily",
"how much the new turbine would weigh",
"whether the new turbine could produce 10% more electricity"
] | 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 | grade7 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Is the following statement about our solar system true or false?
Jupiter's volume is more than 1,000 times that of Earth. | [
"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... | To determine if this statement is true, calculate the value of 1,000 times the volume of Earth.
Then compare the result to the volume of Jupiter. The volume of Jupiter is 1.43 x 10^15 km^3, which is more than 1.08 x 10^15 km^3. So, Jupiter's volume is more than 1,000 times that of Earth. | |
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 | 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 A has more mass than each particle in sample B. The particles in sample A also 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 ... | |
Identify the question that Linda's experiment can best answer. | [
"Does the amount of water in a glass affect whether eggs sink or float in the water?",
"Are eggs more likely to float in fresh water or salty water?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Linda poured four ounces of water into each of six glasses. Linda dissolved one tablespoon of salt in each of three glasses, and did not add salt to the other three. Then, Linda placed an egg in one glass and observed i... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Which statement describes the Buffalo Gap National Grassland ecosystem? | [
"It has hot summers and cool winters.",
"It has heavy rain.",
"It has soil that is poor in nutrients."
] | 0 | Figure: Buffalo Gap National Grassland.
Buffalo Gap National Grassland is a prairie grassland ecosystem in southwestern South Dakota. It is home to the endangered black-footed ferret. This is the only kind of ferret that is native to North America. | 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 prairie grassland is a type of ecosystem. Prairie grasslands have the following features: hot summers and cool winters, a medium amount of rain, and soil that is rich in nutrients. So, the following statement describes the Buffalo Gap National Grassland ecosystem: hot summers and cool winters, a medium amount of rain... | |
Not supported with pagination yet | Read the following text from a student essay. How can the writer best improve his or her ideas and development?
The Servicemen's Readjustment Act, also known as the G.I. Bill, gave veterans money to pay college costs and buy books and supplies. Ex-servicemen were also eligible to receive low-interest home loans so that... | [
"by stating the main idea clearly",
"by removing a second main idea"
] | 0 | closed choice | grade6 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | When you review a fellow student's writing, try to make your feedback clear and specific. You can use questions such as the following to guide your feedback:
Ideas and development: Does the writer express a clear main idea and develop it with evidence, examples, and analysis?
Organization: Does the writer order ideas i... | The writer could best improve his or her ideas and development by stating the main idea clearly.
For example, the writer could add a main idea statement before the underlined sentence, such as The Servicemen's Readjustment Act of 1944 was a widely influential bill that helped veterans in many ways.
The Servicemen's Rea... | |
Not supported with pagination yet | How long is a long-distance running race? | [
"13 kilometers",
"13 centimeters"
] | 0 | Select the better estimate. | closed choice | grade2 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers?
The number 16 on its own does not give you much informa... | The better estimate for the length of a long-distance running race is 13 kilometers.
13 centimeters is too short. |
Not supported with pagination yet | Which sentence states a fact? | [
"Mia Hamm was the most impressive soccer player in the history of the United States Women's National Team.",
"Mia Hamm helped her soccer team at the University of North Carolina at Chapel Hill win four NCAA titles."
] | 1 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Distinguish facts from opinions | A fact is something that can be proved by research or observation.
Napoleon Bonaparte was shorter than King Louis XVI.
The statement above is a fact. The statement can be proved by researching the height of each man and comparing them.
An opinion is something that a person believes, thinks, or feels. An opinion cannot ... | The second sentence states a fact.
Mia Hamm helped her soccer team at the University of North Carolina at Chapel Hill win four NCAA titles.
It can be proved by reading a biography of Mia Hamm.
The first sentence states an opinion.
Mia Hamm was the most impressive soccer player in the history of the United States Women'... | |
Which ocean is highlighted? | [
"the Indian Ocean",
"the Pacific Ocean",
"the Arctic Ocean",
"the Southern Ocean"
] | 2 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Arctic Ocean. | ||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"After Robert graduates, he plans to travel around Europe with his brother.",
"Robert plans to travel around Europe with his brother after he graduates."
] | 1 | closed choice | grade6 | language science | pronouns | 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 he could refer to Robert or his brother.
Robert plans to travel around Europe with his brother after he graduates.
The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning... | |
Not supported with pagination yet | Select the invertebrate. | [
"human",
"puffin",
"golden orb-weaver",
"cardinalfish"
] | 2 | Hint: Insects, spiders, and worms are invertebrates. | closed choice | grade5 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | Like other spiders, a golden orb-weaver is an invertebrate. It does not have a backbone. It has an exoskeleton.
A human is a mammal. Like other mammals, a human is a vertebrate. It has a backbone.
A puffin is a bird. Like other birds, a puffin is a vertebrate. It has a backbone.
A cardinalfish is a fish. Like other fis... |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade7 | 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.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Not supported with pagination yet | Would you find the word steadily on a dictionary page with the following guide words?
screen - surf | [
"yes",
"no"
] | 0 | yes or no | 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 steadily is between the guide words screen - surf, it would be found on that page. | |
Not supported with pagination yet | Which is the most flexible? | [
"ice rink",
"silk necktie",
"glass marbles"
] | 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... | Flexible is a property. A flexible material can be bent without breaking easily.
Look at each picture, one at a time. Imagine bending the material shown in each picture.
Of the choices, the silk necktie is the most flexible. If you fold silk fabric, it will not break. | |
Not supported with pagination yet | What do these two changes have in common?
ice crystals forming on a window
water freezing into ice | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes."
] | 0 | 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.
Ice crystals forming on a window is a change of state. So, it is a physical change. Water vapor in the air can change directly into ice when it touches a very cold window! A change of state from a gas to a solid is called depositing.
Water freezing into ice is a change of state. So, it ... | |
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 | 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 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 | What is the mass of a can of soup? | [
"14 pounds",
"14 ounces",
"14 tons"
] | 1 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a can of soup is 14 ounces.
14 pounds and 14 tons are both too heavy. |
Not supported with pagination yet | Which figure of speech is used in this text?
Common sense is not so common.
—attributed to Voltaire | [
"anaphora",
"paradox"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses a paradox, a statement that might at first appear to be contradictory, but that may in fact contain some truth.
Common sense is not so common at first appears to be contradictory, as common sense refers to basic good judgment shared by most people. However, it contains some truth: many people do not use g... | |
What is the capital of Colorado? | [
"Colorado Springs",
"Boulder",
"Denver",
"Cheyenne"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Is there a surplus or a shortage of scarves? | [
"surplus",
"shortage"
] | 1 | A clothing store has 50 scarves for sale. Each scarf costs $17. At that price, 85 people want to buy one. | closed choice | grade5 | social science | economics | Supply and demand | Identify shortage and surplus | There is a surplus if there is too much for sale at a given price.
There is a shortage if there is not enough for sale at a given price.
Surpluses and shortages usually happen when people who are selling goods or services charge too much or too little.
When the price is too high, consumers will not want to buy much of ... | At the current price, there are not enough scarves for sale. There are 50 scarves for sale, but 85 people want to buy one.
So, there is a shortage of scarves. |
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.