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Not supported with pagination yet | Based on this information, what is this bitter melon plant's genotype for the seed color gene? | [
"dark brown seeds",
"DD"
] | 1 | In a group of bitter melon plants, some individuals have dark brown seeds and others have light brown seeds. In this group, the gene for the seed color trait has two alleles. The allele D is for dark brown seeds, and the allele d is for light brown seeds.
A certain bitter melon plant from this group has dark brown seed... | 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 genotype for a gene is its combination of alleles for that gene. The bitter melon plant has two alleles for dark brown seeds (D). So, the plant's genotype for the seed color gene is DD. |
Not supported with pagination yet | Which figure of speech is used in this text?
"This box weighs a ton!" Scott panted. "Irma, would you mind helping me carry it up the stairs?" | [
"chiasmus",
"hyperbole"
] | 1 | closed choice | grade12 | 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.
A ton is an exaggeration, since it would be impossible for one or two people to carry a box that weighed a ton, or 2000 pounds. | |
Which trait did Eryma have? Select the trait you can observe on the fossil. | [
"a round, flat body",
"two claws"
] | 1 | This picture shows a fossil of an ancient animal called Eryma.
Fossils of Eryma have been found in deposits of shale and limestone. Some Eryma fossils are more than 100,000,000 years old. | closed choice | grade4 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | ||
Not supported with pagination yet | Answer the riddle.
I am white.
You can drink me.
I come from a cow.
What am I? | [
"a calf",
"milk"
] | 1 | closed choice | grade1 | language science | vocabulary | Comprehension strategies | What am I? | Milk is white.
You can drink milk.
Milk comes from a cow. | ||
During this time, thermal energy was transferred from () to (). | [
"each bottle . . . the surroundings",
"the surroundings . . . each bottle"
] | 1 | Two bottles of soda were sitting on a porch on a hot day. The two bottles were identical, except that one bottle was made of brown glass and one bottle was made of clear glass. This table shows how the temperature of each bottle changed over 25minutes. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each bottle increased, which means that the thermal energy of each bottle increased. So, thermal energy was transferred from the surroundings to each bottle. | |
Not supported with pagination yet | Suppose Layla decides to plant the eucalyptus tree. Which result would be a cost? | [
"The eucalyptus tree will use up more space than the hydrangeas would have used up.",
"Layla will get to look at the eucalyptus tree. She thinks it will look more beautiful than the hydrangeas would have looked."
] | 0 | Layla is deciding whether to plant hydrangeas or a eucalyptus tree in her backyard. She wants to make her backyard more beautiful. But she also wants to leave space for doing fun things. | closed choice | grade5 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Layla wants or needs:
The eucalyptus tree will use up more space than the hydrangeas would have used up. |
Which animal is also adapted to be camouflaged among green leaves? | [
"common hawk-cuckoo",
"emerald tree boa"
] | 1 | Green tree pythons live in the forests of Southeast Asia. The is adapted to be camouflaged among green leaves.
Figure: green tree python. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the green tree python.
The green tree python has green scales covering its body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The emerald tree boa has bright green scales cover... | |
What is the capital of North Carolina? | [
"Charlotte",
"Bismarck",
"Pierre",
"Raleigh"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
It's an open secret that Steven is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"oxymoron",
"euphemism"
] | 0 | closed choice | grade11 | 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 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. | |
Not supported with pagination yet | Which sentence is more formal? | [
"In 2012, SpaceX made a splash by becoming the first private company to dock a spacecraft at the International Space Station.",
"In 2012, SpaceX drew a great deal of attention by becoming the first private company to dock a spacecraft at the International Space Station."
] | 1 | closed choice | grade7 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses an idiom (made a splash).
The first sentence uses formal language in place of the idiom, so it is more formal overall. | |
Select the organism in the same species as the pink skunk clownfish. | [
"Amphiprion perideraion",
"Diodon hystrix",
"Halichoeres hortulanus"
] | 0 | This organism is a pink skunk clownfish. Its scientific name is Amphiprion perideraion. | 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 pink skunk clownfish's scientific name is Amphiprion perideraion.
Halichoeres hortulanus does not have the same scientific name as a pink skunk clownfish. So, Amphiprion perideraion and Halichoeres hortulanus are not in the same species.
Amphiprion perideraion has the same scientific name as a pink skunk clownfish. S... | |
Not supported with pagination yet | What is the mass of a guitar? | [
"8 tons",
"8 ounces",
"8 pounds"
] | 2 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a guitar is 8 pounds.
8 ounces is too light and 8 tons is too heavy. |
Not supported with pagination yet | Based on this information, what is this plant's phenotype for the pod shape trait? | [
"constricted pods",
"inflated pods"
] | 1 | This passage describes the pod shape trait in pea plants:
In a group of pea plants, some individuals have inflated pods and others have constricted pods. In this group, the gene for the pod shape trait has two alleles. The allele for inflated pods (D) is dominant over the allele for constricted pods (d).
A certain pea... | closed choice | grade8 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine the pea plant's phenotype for the pod shape trait. First, consider the alleles in the plant's genotype for the pod shape gene. Then, decide whether these alleles are dominant or recessive.
The allele for inflated pods (D) is dominant over the allele for constricted pods (d). This means D is a domi... |
What is the capital of Minnesota? | [
"Saint Paul",
"Madison",
"Indianapolis",
"Minneapolis"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Saint Paul is the capital of Minnesota. | |||
Select the organism in the same genus as the dromedary camel. | [
"Camelus dromedarius",
"Equus grevyi",
"Macropus giganteus"
] | 0 | This organism is a dromedary camel. Its scientific name is Camelus dromedarius. | 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 dromedary camel's scientific name is Camelus dromedarius. The first word of its scientific name is Camelus.
This organism and the dromedary camel are in the same genus and the same species! Both organisms have the same scientific name, Camelus dromedarius.
Equus grevyi is in the genus Equus. The first word of its sci... | |
What is the capital of Ohio? | [
"Topeka",
"Cincinnati",
"Columbus",
"Fayetteville"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Columbus is the capital of Ohio. | |||
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"The Fox and the Hound",
"the Fox and the hound"
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The words and and the are not important, so they should not be capitalized.
The correct title is The Fox and the Hound. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 2.",
"The magnetic force is stronger in Pair 1.",
"The strength of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger.
The magnets in Pair 2 are closer together than the magnets in Pair 1. So, the magnetic force is stronger in Pair 2 than in Pair 1. | |
Which animal is also adapted to be camouflaged in the snow? | [
"ptarmigan",
"great horned owl"
] | 0 | Polar bears live in and around the cold Arctic Ocean. The is adapted to be camouflaged in the snow.
Figure: polar bear. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the polar bear.
The polar bear has white fur covering its body. It is adapted to be camouflaged in the snow. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
During the winter, the ptarmigan has white feathers covering its body. It ... | |
Which continent is highlighted? | [
"Asia",
"South America",
"Europe",
"Antarctica"
] | 1 | closed choice | grade5 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is South America. | ||
Not supported with pagination yet | What is the mass of an eraser? | [
"46 grams",
"46 kilograms"
] | 0 | Select the better estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an eraser is 46 grams.
46 kilograms is too heavy. |
Which of these states is farthest east? | [
"Kansas",
"California",
"Montana",
"New Mexico"
] | 0 | closed choice | grade4 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Kansas is farthest east. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
All the cars at McCoy's Auto Dealership are certified pre-owned. Although they all seem to be in good condition, I think I'd prefer to buy a new car. | [
"euphemism",
"hyperbole"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Pre-owned is an indirect way of saying used. | |
Which part of the beet plant do we usually eat? | [
"the root",
"the seeds",
"the fruit"
] | 0 | People use beet plants for food. We usually eat the part of this plant that takes in water and nutrients. It holds the plant in place in the soil. | closed choice | grade4 | natural science | biology | Plants | Classify fruits and vegetables as plant parts | The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions.
The roots take in water and nutrients from the soil. They also hold the plant in place in the soil.
The stem supports the plant. It carries food, water, and nutrients... | The part of the beet plant we usually eat is the root. It takes in water and nutrients. It also holds the plant in place in the soil. | |
Which trait did Ursus spelaeus have? Select the trait you can observe on the fossil. | [
"rounded ears",
"brown fur covering most of its body",
"long legs"
] | 2 | This picture shows a fossil of an ancient animal called Ursus spelaeus.
Ursus spelaeus went extinct about 24,000 years ago. Many Ursus spelaeus fossils have been found in caves. | closed choice | grade6 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | ||
Which better describes the Gobi Desert ecosystem? | [
"It has heavy snow. It also has only a few types of trees.",
"It has dry, thin soil. It also has a small amount of rain or snow."
] | 1 | Figure: Gobi Desert.
The Gobi Desert is a cold desert ecosystem in northern China and southern Mongolia. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the Gobi Desert has dry, thin soil. It also has a small amount of rain or snow. | |
Identify the question that Nicole'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.
Nicole glued lids onto 16 cardboard shoe boxes of equal size. She painted eight of the boxes black and eight of the boxes white. Nicole made a small hole in the side of each box and then stuck a thermometer partially in... | closed choice | grade8 | 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 Illinois? | [
"Fayetteville",
"Chicago",
"Santa Fe",
"Springfield"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Springfield is the capital of Illinois. | |||
Not supported with pagination yet | Using only these supplies, which question can Riley investigate with an experiment? | [
"Do rocks skip more times when thrown across a river or across a pond?",
"Do round rocks or flat rocks skip more times when thrown across the river?",
"Do small rocks or large rocks skip more times when thrown across the river?"
] | 2 | Riley likes to skip rocks at the river. She notices that some of the rocks she throws skip off the surface of the water many times, while others skip once and then sink. She wonders what factors affect how well rocks skip on the water. So, she decides to design an experiment. She has the following supplies available:
1... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
What is the name of the colony shown? | [
"Maryland",
"Georgia",
"Virginia",
"South Carolina"
] | 3 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is South Carolina. | |||
What is the capital of Washington? | [
"Orlando",
"Olympia",
"Denver",
"Spokane"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Olympia is the capital of Washington. | |||
Which solution has a higher concentration of pink particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
Not supported with pagination yet | Last year, canvas shoes were in style. This year, all the fashion magazines are showing leather shoes. What will probably happen to the overall supply of leather shoes over the next year? | [
"The supply will probably go up.",
"The supply will probably go down."
] | 0 | closed choice | grade7 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | Producers know that consumers like to buy goods that are in style. They expect that leather shoes will be in style this year. So, there is an expected change in demand for leather shoes. Producers want to sell as many pairs of leather shoes as they can. So, the supply of leather shoes will probably go up. | |
Which letter shows the location of the South? | [
"B",
"C",
"A"
] | 1 | During the Civil War, the South tried to break away from the United States and start a new country called the Confederate States of America. After four years of bloody fighting, the United States defeated the Confederacy in 1865, ending the Civil War. The years following the war are referred to as the Reconstruction Er... | closed choice | grade7 | social science | us-history | Reconstruction | The end of Reconstruction and the rise of Jim Crow | Look at the compass on the map. It tells you what part of the map is to the south.
The compass shows that the bottom of the map is to the south. The region in that part of the United States is known as the South. The states in this region tried to break away from the United States during the Civil War. | ||
Complete the statement.
Magnesium oxide is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents magnesium oxide. Magnesium oxide is used to help purify water. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether magnesium oxide is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the che... | |
Not supported with pagination yet | Which figure of speech is used in this text?
I've heard that Shawna & Co. is downsizing, so I'm happy to see that their store in downtown Greenville will remain open for now. | [
"hyperbole",
"euphemism"
] | 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 euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Downsizing is an indirect way of saying that the company is planning on firing employees, closing shops or branches, and/or reducing its budget. | |
Identify the question that Evan's experiment can best answer. | [
"Do steel nails rust in fewer days when submerged in a large volume of liquid compared to a small volume?",
"Do steel nails take fewer days to rust in water compared to vinegar?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Evan put one two-inch steel nail into each of six test tubes. He added water to three of the test tubes and vinegar to the other three. In each test tube, he completely covered the nail with the same volume of liquid. E... | 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 property do these three objects have in common? | [
"sticky",
"scratchy",
"fuzzy"
] | 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 sticky object can attach or stick to other things. The sandpaper is not sticky.
A fuzzy object is covered in soft hair. The sandpaper is not fuzzy.
A scratchy object is rough and itchy against your skin. All three objects are scratchy.
The property... | |
What is the capital of Ohio? | [
"Columbus",
"Houston",
"Lincoln",
"Carson City"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Columbus is the capital of Ohio. | |||
Select the organism in the same genus as the Victoria crowned pigeon. | [
"Alligator mississippiensis",
"Goura scheepmakeri",
"Aequorea victoria"
] | 1 | This organism is a Victoria crowned pigeon. Its scientific name is Goura victoria. | 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 Victoria crowned pigeon's scientific name is Goura victoria. The first word of its scientific name is Goura.
Aequorea victoria and Goura victoria are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Aequorea victoria and Goura victoria have the same spe... | |
Complete the statement.
Hydrogen sulfide is (). | [
"a compound",
"an elementary substance"
] | 0 | The model below represents a molecule of hydrogen sulfide. Hydrogen sulfide is a poisonous gas that is produced by some types of bacteria found in swamps and marshes. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether hydrogen sulfide is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the ch... | |
Not supported with pagination yet | Look at the word. Does it have a closed syllable or an open syllable?
go | [
"open",
"closed"
] | 0 | closed choice | grade2 | language science | word-study | Short and long vowels | Is the syllable open or closed? | Words are made up of syllables. Two kinds of syllables are closed and open.
A closed syllable has one vowel and ends with a consonant. It usually has a short vowel sound.
desk: short e
kit / ten: short i / short e
An open syllable ends with one vowel. It usually has a long vowel sound.
go: long o
he / ro: long e / long... | The word go ends with a vowel and has a long vowel sound. So, it has an open syllable. | |
Which property do these three objects have in common? | [
"smooth",
"yellow",
"translucent"
] | 0 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A smooth object is not scratchy or rough. All three objects are smooth.
A translucent object lets light through. But you cannot see clearly through a translucent object. The car bumper and the ceramic mug are not translucent.
Yellow is a color.
This ... | |
What can Chloe and Eddie trade to each get what they want? | [
"Chloe can trade her tomatoes for Eddie's sandwich.",
"Chloe can trade her tomatoes for Eddie's broccoli.",
"Eddie can trade his almonds for Chloe's tomatoes.",
"Eddie can trade his broccoli for Chloe'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.
Chloe and Eddie open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Chloe wanted br... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Chloe wanted broccoli in her lunch and Eddie was hoping for tomatoes. Look at the labeled part of the images.
Chloe has tomatoes. Eddie 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 is the mass of an apple? | [
"85 kilograms",
"85 grams"
] | 1 | Select the better estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an apple is 85 grams.
85 kilograms is too heavy. |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Ron's brother wasn't feeling well, so Ron had to stay home with him.",
"Ron had to stay home with his brother because he wasn't feeling well."
] | 1 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun he could refer to Ron or his brother.
Ron had to stay home with his brother because he wasn't feeling well.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is cle... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
ceiling - claim | [
"car",
"chick"
] | 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 chick is between the guide words ceiling - claim, it would be found on that page. | |
Not supported with pagination yet | What information supports the conclusion that Latrell acquired this trait? | [
"Latrell learned how to knit in an after school program.",
"Latrell knits sweaters using cotton, wool, and other types of yarn."
] | 0 | Read the description of a trait.
Latrell knows how to knit sweaters. | 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.... | |
Not supported with pagination yet | Using only these supplies, which question can Luna investigate with an experiment? | [
"Will eight ounces of carbonated water or eight ounces of tap water get warmer when placed in a jar in the sun?",
"When placed in the sun, will eight ounces of water in a closed jar or eight ounces of water in an open jar get warmer?",
"When placed in the sun, will eight ounces of water in a glass jar or eight ... | 1 | Luna leaves a glass jar of cold tea outside in full sunlight. When she goes to get it, she notices that the tea is warm. She wonders what factors affect how warm a liquid gets from sitting in the sunlight. So, she decides to design an experiment. She has the following supplies available:
two identical glass jars
two ja... | 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... | |
Not supported with pagination yet | What information supports the conclusion that Bruce acquired this trait? | [
"Bruce is most interested in plant biology.",
"Bruce learned biology by doing experiments."
] | 1 | Read the description of a trait.
Bruce knows a lot about biology. | closed choice | grade3 | natural science | biology | Heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | 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 smaller the magnets, the smaller the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 1 than in Pair 2. So, the magnit... | |
Not supported with pagination yet | Which is a compound sentence? | [
"The barber and his brother opened their shop in Harlem more than thirty years ago.",
"Hazel dislikes radishes, so she always orders her salad without them."
] | 1 | 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 so.
Hazel dislikes radishes, so she always orders her salad without them. | |
Based on the arrows, which of the following organisms is a decomposer? | [
"mushroom",
"lichen"
] | 0 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
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 | grade4 | natural science | biology | Ecosystems | Interpret food webs | 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 lichen has arrows poi... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Judith is good at cooking. | [
"acquired",
"inherited"
] | 0 | Hint: Cooking well takes practice. | 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... | People are not born knowing how to cook. Instead, many people learn how to cook. So, cooking is an acquired trait. |
Not supported with pagination yet | Which figure of speech is used in this text?
The city of Richmond is currently experiencing a minor crisis. Its sanitation workers are on strike, and the garbage is piling up in the streets. | [
"paradox",
"oxymoron"
] | 1 | closed choice | grade11 | 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 an oxymoron, a joining of two seemingly contradictory terms.
Minor crisis is a contradiction, because minor means small or insignificant, and a crisis is a large problem. | |
Not supported with pagination yet | Based on this information, what is this pea plant's genotype for the pod color gene? | [
"Dd",
"green pods"
] | 0 | In a group of pea plants, some individuals have green pods and others have yellow pods. In this group, the gene for the pod color trait has two alleles. The allele D is for green pods, and the allele d is for yellow pods.
A certain pea plant from this group has green pods. This plant has one allele for green pods and o... | 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 genotype for a gene is its combination of alleles for that gene. The pea plant has one allele for green pods (D) and one allele for yellow pods (d). So, the plant's genotype for the pod color gene is Dd. |
Which animal's feet are also adapted for grabbing prey? | [
"swamp harrier",
"white rhinoceros"
] | 0 | Golden eagles eat fish, mammals, and other birds. The 's feet are adapted to grab prey.
Figure: golden eagle. | 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 golden eagle.
The golden eagle has long toes with sharp claws. Its feet are adapted for grabbing prey. The sharp claws can help the golden eagle attack and kill its prey. The long toes can help it hold on to its prey.
Now look at each animal. Figure out which animal has a similar adaptation.
... | |
What is the capital of Wyoming? | [
"Tucson",
"Juneau",
"Honolulu",
"Cheyenne"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Cheyenne is the capital of Wyoming. | |||
What can Sam and Denise trade to each get what they want? | [
"Denise can trade her broccoli for Sam's oranges.",
"Denise can trade her almonds for Sam's tomatoes.",
"Sam can trade his tomatoes for Denise's sandwich.",
"Sam can trade his tomatoes for Denise's broccoli."
] | 3 | 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.
Sam and Denise open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Sam wanted brocc... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Sam wanted broccoli in his lunch and Denise was hoping for tomatoes. Look at the labeled part of the images.
Sam has tomatoes. Denise 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. | ||
Select the organism in the same genus as the axolotl. | [
"Tigrisoma mexicanum",
"Alligator mississippiensis",
"Ambystoma mexicanum"
] | 2 | This organism is an axolotl. Its scientific name is Ambystoma mexicanum. | 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 axolotl's scientific name is Ambystoma mexicanum. The first word of its scientific name is Ambystoma.
Tigrisoma mexicanum and Ambystoma mexicanum are not in the same genus.
These organisms are not in the same genus, but part of their scientific names is the same. Tigrisoma mexicanum and Ambystoma mexicanum have the ... | |
In this food chain, the reef squid is a tertiary consumer. Why? | [
"It eats a producer.",
"It eats a primary consumer.",
"It eats a secondary consumer."
] | 2 | This diagram shows a food chain from a tropical coral reef ecosystem off the coast of Australia. | closed choice | grade5 | natural science | biology | Ecosystems | Identify roles in food chains | Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food.
The food chain begins with the producer. A producer can change matter that is not food into food. Many producers use carbon dioxide, water, and sunlight to make sugar. Ca... | In this food chain, the reef squid is a tertiary consumer because it eats a secondary consumer. The secondary consumer in this food chain is the blue sprat. | |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"85°F",
"55°F",
"50°F"
] | 0 | 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 Fahrenheit (°F). Fahrenheit is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Fa... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid is halfway between 80 and 90. So, the temperature is 85°F. | |
Not supported with pagination yet | Which figure of speech is used in this text?
I would remind you that extremism in the defense of liberty is no vice. And let me remind you also that moderation in the pursuit of justice is no virtue.
—Barry Goldwater, in his acceptance speech at the 1964 Republican National Convention | [
"antithesis",
"chiasmus"
] | 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 antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Goldwater contrasts two parallel clauses, extremism in the defense of liberty is no vice and moderation in the pursuit of justice is no virtue. | |
Not supported with pagination yet | Select the one substance that is not a rock. | [
"Diorite is a solid. It is not made by living things.",
"A peach pit is made by a living thing. It is not a pure substance.",
"Granite is a solid. It is not a pure substance."
] | 1 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify rocks using properties | Rocks are made of minerals. Here are some properties of rocks:
They are solid.
They are formed in nature.
They are not made by living things.
They are not pure substances. | Compare the properties of each substance to the properties of rocks. Select the substance whose properties do not match those of rocks.
Granite is a rock.
A peach pit is made by a living thing. But rocks are not made by living things.
So, a peach pit is not a rock.
Diorite is a rock. | |
What is the capital of Michigan? | [
"Grand Rapids",
"Hartford",
"Bismarck",
"Lansing"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Lansing is the capital of Michigan. | |||
Not supported with pagination yet | What do these two changes have in common?
cooking a pancake
salt and vinegar removing tarnish from a penny | [
"Both are caused by cooling.",
"Both are only physical changes.",
"Both are caused by heating.",
"Both are chemical changes."
] | 3 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Cooking a pancake is a chemical change. Pancakes are made from pancake batter. A cooked pancake is a different type of matter than pancake batter. Pancake batter is wet and slippery. Cooked pancakes are fluffy and can be good to eat!
Salt and vinegar removing tarnish from a penny is a c... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Tucker,",
"dear Tucker,"
] | 0 | closed choice | grade4 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Tucker is capitalized because it is a proper noun. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
After a jog around the block, Helen collapsed on the couch and declared with a wheeze, "Well, I'm ready to run a marathon." | [
"Helen was out of shape.",
"Helen felt full of energy."
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Ready to run a marathon ironically suggests that Helen was out of shape. She was actually far from ready to run a marathon. | |
Which solution has a higher concentration of pink particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your niece,\nCarla",
"your niece,\nCarla"
] | 0 | 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 closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | What is the mass of a floor lamp? | [
"3 kilograms",
"3 grams"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of a floor lamp is 3 kilograms.
3 grams is too light. |
Not supported with pagination yet | Complete the sentence.
Mixing sand and water is a (). | [
"physical change",
"chemical change"
] | 0 | closed choice | grade2 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two ways matter can change.
In a chemical change, the type of matter changes.
Burning a piece of paper is a chemical change. The paper changes into ash and smoke.
In a physical change, the type of matter stays the same.
Cutting a piece of paper is a physical change. The cut pie... | Mixing sand and water is a physical change. Adding water makes the sand wet. But both the sand and water are still made of the same type of matter as before. | |
Not supported with pagination yet | What do these two changes have in common?
chicken cooking in an oven
baking an apple pie | [
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are only physical changes."
] | 1 | 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.
Cooking chicken is a chemical change. The heat causes the matter in the chicken to change. Cooked chicken and raw chicken are different types of matter.
Baking an apple pie is a chemical change. The type of matter in the pie changes when it is baked. The crust turns brown, and the apple... | |
Not supported with pagination yet | Select the one true statement. | [
"Chromosomes break down sugar to release energy that an animal cell can use.",
"The nucleus directs a plant cell's activities by sending instructions to different parts of the cell.",
"Chloroplasts direct cell activities by sending instructions to different parts of a plant cell."
] | 1 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
What is the expected ratio of offspring with a spotted tail to offspring with an unspotted tail? Choose the most likely ratio. | [
"0:4",
"3:1",
"4:0",
"2:2",
"1:3"
] | 3 | In a group of guppies, some individuals have a spotted tail and others have an unspotted tail. In this group, the gene for the tail spots trait has two alleles. The allele for a spotted tail (I) is dominant over the allele for an unspotted tail (i).
This Punnett square shows a cross between two guppies. | 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 a spotted tail or an unspotted tail, consider whether each phenotype is the dominant or recessive allele's version of the tail spots trait. The question tells you that the I allele, which is for a spotted tail, is dominant over the i allele, whi... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
shatter - stagger | [
"slight",
"sandwich"
] | 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 slight is between the guide words shatter - stagger, it would be found on that page. | |
Not supported with pagination yet | Marco starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Marco need to pull with a larger force? | [
"a friend who weighs 28 pounds",
"a friend who weighs 35 pounds"
] | 1 | Marco gives two friends a ride in his wagon. One friend sits in the wagon at a time. | closed choice | grade2 | natural science | physics | Force and motion | How do mass and force affect motion? | A force is a push or a pull.
A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction.
Forces can be different sizes.
Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. Y... | Look for the friend who is heavier.
A friend who weighs 35 pounds is heavier than a friend who weighs 28 pounds. So, to move the wagon at the same speed each time, Marco needs to use a larger force to start moving the wagon with a friend who weighs 35 pounds. |
Not supported with pagination yet | Does this passage describe the weather or the climate?
The sky is clear today. So, Erik thinks the air pressure must be high. | [
"weather",
"climate"
] | 0 | closed choice | grade5 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
The sky is clear today. So, Erik thinks the air pressure must be high.
Air pressure is caused by the weight of the air in the atmosphere. When the air pressure is high, the sky is usually clear.
This passage tells you about the air pressure right now where Erik is. It describes the atmosphere a... | |
Which continent is highlighted? | [
"Australia",
"North America",
"Europe",
"Asia"
] | 3 | closed choice | grade7 | 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 Asia. | ||
What is the capital of Massachusetts? | [
"Boston",
"Plymouth",
"Atlanta",
"Providence"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Boston is the capital of Massachusetts. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
After Brianna cooked and served a scrumptious dinner, Dad boasted that she is the Julia Child of our family. | [
"allusion",
"simile"
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses an allusion, a brief reference to someone or something well known.
Julia Child alludes to the famous chef who is known for popularizing French cuisine in the United States. | |
Which of these states is farthest west? | [
"Wisconsin",
"New Hampshire",
"North Carolina",
"Florida"
] | 0 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Wisconsin is farthest west. | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
Michelle has no school spirit—she never comes to any of our football games. | [
"false dichotomy: an argument that presents only two choices when more options exist",
"ad hominem: a personal attack against one's opponent"
] | 0 | closed choice | grade7 | 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 Michelle doesn't have school spirit, because she doesn't go to football games. However, there may be a number of reasons why Michelle doesn't go to football games. This illustrates a type of logical fallacy known as a false dichotomy. | |
Not supported with pagination yet | Which tense does the sentence use?
Emmet carefully spelled the word aloud. | [
"past tense",
"future tense",
"present tense"
] | 0 | 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 past tense. You can tell because it uses a past-tense verb, spelled. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
I won't even bother to respond to Isaiah's comment on my op-ed. His profile picture is a duck wearing a top hat—he's clearly incapable of thoughtful debate. | [
"ad hominem: an attack against the person making the argument, rather than the argument itself",
"circular reasoning: an argument that supports a claim with the claim itself",
"bandwagon fallacy: the assumption that the popular choice is automatically correct"
] | 0 | closed choice | grade9 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Isaiah's comment should not be taken seriously because he has a silly profile picture. This is a personal attack that isn't relevant to whether his comment is valid. This illustrates a type of logical fallacy known as ad hominem. | |
Not supported with pagination yet | Which is the most flexible? | [
"bone",
"glass jar",
"rubber band"
] | 2 | closed choice | grade4 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | 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 rubber band is the most flexible. If you bend rubber, it will not break. | |
Which animal's limbs are also adapted for gliding? | [
"northern flying squirrel",
"ring-tailed lemur"
] | 0 | Sugar gliders live in the forests of Southeast Asia. They have two arms and two legs. They also have a thin layer of skin, called a patagium, stretched between their arms and legs.
Sugar gliders use the patagium to glide through the air from tree to tree. The 's limbs are adapted for gliding.
Figure: sugar glider. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the sugar glider.
The sugar glider can spread its patagium like a wing. This helps it glide through the air from the higher branches of one tree to the lower branches of another tree.
Now look at each animal. Figure out which animal has a similar adaptation.
The northern flying squirrel has a pat... | |
Not supported with pagination yet | How long is a bench? | [
"4 millimeters",
"4 centimeters",
"4 meters",
"4 kilometers"
] | 2 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a bench is 4 meters.
4 millimeters and 4 centimeters are too short. 4 kilometers is too long. |
Not supported with pagination yet | Is the following statement true or false?
Animal cells do not have chloroplasts. | [
"false",
"true"
] | 1 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | Animal cells do not have chloroplasts.
This statement is true. Plant cells have chloroplasts, but animal cells do not. Chloroplasts help plant cells make their own food. This food is a type of sugar called glucose. Animal cells cannot make their own food. | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 1 than in Pair 2. So, the magnitud... | |
What can Matthew and Robert trade to each get what they want? | [
"Matthew can trade his tomatoes for Robert's broccoli.",
"Robert can trade his broccoli for Matthew's oranges.",
"Robert can trade his almonds for Matthew's tomatoes.",
"Matthew can trade his tomatoes for Robert's carrots."
] | 0 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Matthew and Robert open their lunch boxes in the school cafeteria. Neither Matthew nor Robert got everything that they wanted. Th... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Matthew wants broccoli. Robert 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. | ||
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each battery",
"each battery . . . the surroundings"
] | 1 | 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 | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each battery decreased, which means that the thermal energy of each battery decreased. So, thermal energy was transferred from each battery to the surroundings. | |
Which fish's mouth is also adapted for tearing through meat? | [
"threespot damselfish",
"barracuda"
] | 1 | Sand tiger sharks eat turtles, dolphins, and other fish. The mouth of the tiger shark is adapted to tear through meat.
Figure: sand tiger shark. | closed choice | grade3 | 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 sand tiger shark.
The sand tiger shark has a large mouth and sharp teeth. Its mouth is adapted for tearing through meat. The sand tiger shark uses its teeth to cut up meat into pieces it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The barracuda has ... | |
What is the capital of Wyoming? | [
"Madison",
"Cheyenne",
"Chicago",
"Laramie"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Cheyenne is the capital of Wyoming. | |||
Not supported with pagination yet | Select the one true statement. | [
"In an animal cell, the mitochondria contain the master plan for cell activities and cell development.",
"Chloroplasts store nutrients, water, and waste in a plant cell.",
"The nucleus of an animal cell has chromosomes."
] | 2 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
Not supported with pagination yet | Would you find the word service on a dictionary page with the following guide words?
silver - sore | [
"yes",
"no"
] | 1 | yes or no | 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 service is not between the guide words silver - sore, it would not be found on that page. | |
Which ocean is highlighted? | [
"the Pacific Ocean",
"the Arctic Ocean",
"the Atlantic Ocean",
"the Southern Ocean"
] | 0 | 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 Pacific Ocean. | ||
Is the following statement about our solar system true or false?
The volume of Saturn is more than ten times the volume of Uranus. | [
"true",
"false"
] | 0 | Use the data to answer the question below. | true-or false | grade8 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To determine if this statement is true, calculate the value of ten times the volume of Uranus.
Then compare the result to the volume of Saturn. The volume of Saturn is 8.27 x 10^14 km^3, which is greater than 6.83 x 10^14 km^3. So, the volume of Saturn is more than ten times the volume of Uranus. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 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. | |
Not supported with pagination yet | Would you find the word mole on a dictionary page with the following guide words?
mission - mumble | [
"no",
"yes"
] | 1 | yes or no | grade7 | 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 mole is between the guide words mission - mumble, it would be found on that page. |
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.