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ScienceQA

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Which of these states is farthest north?

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 is at the top of the map.

To find the answer, look at the compass rose. Look at which way the north arrow is pointing. Indiana is farthest north.

What is the capital of Arizona?

closed choice

grade4

social science

geography

State capitals

Identify state capitals of the West

Phoenix is the capital of Arizona.

Which change best matches the sentence? A lake dries up after many years of no rain.

closed choice

grade3

natural science

earth-science

Earth events

Classify changes to Earth's surface II

Answer the riddle. I am white or brown. You can eat me. I come from a hen. What am I?

closed choice

grade1

language science

vocabulary

Comprehension strategies

What am I?

An egg is round. You can eat an egg. An egg comes from a bird.

What is the volume of a small measuring spoon?

Select the better estimate.

closed choice

grade5

natural science

units-and-measurement

Units and measurement

Choose metric units of volume

Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters. There are 1,000 milliliters in 1 liter. So, 1 milliliter is much less than 1 liter. A raindrop has a volume of about 20 milliliters, while a large soda bottle has a volume of 2 liters. The flask shown here measures volumes up to 500 milliliters.

The better estimate for the volume of a small measuring spoon is 3 milliliters. 3 liters is too much.

Based on this information, what is Briar's phenotype for the fur texture trait?

In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele for wavy fur (f) is recessive to the allele for straight fur (F). Briar is a Syrian hamster from this group. Briar has the homozygous genotype FF for the fur texture gene.

closed choice

grade6

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 alleles, or forms, that can cause different versions of a trait. For example, flower color is a trait in pea plants. The gene for this trait has two possible alleles. Each allele is represented by an uppercase or lowercase letter. The allele F is for purple flowers, and the allele f is for white flowers. Each pea plant has two alleles for the flower color gene—one allele inherited from each parent. An organism's genotype for a gene is its combination of alleles for that gene. So, a pea plant may have a genotype of FF, Ff, or ff for the flower color gene. An organism's phenotype for a trait is its observable version of that trait, which depends on the organism's combination of alleles. A pea plant may have a phenotype of purple flowers or white flowers for the flower color trait. Some traits, like flower color in pea plants, are controlled by a single gene. Most plants and animals have a genotype made up of two alleles for these traits. These two alleles determine whether an organism is homozygous or heterozygous for the gene. An organism with two identical alleles for a gene is homozygous for that gene. A pea plant with the genotype FF or ff is homozygous for the flower color gene. An organism with two different alleles for a gene is heterozygous for that gene. A pea plant with the genotype Ff is heterozygous for the flower color gene. The types of alleles in an organism's genotype determine the organism's phenotype. Some alleles have types called dominant and recessive. These two types can cause different versions of a trait to appear as the organism's phenotype. A dominant allele causes its version of the trait to appear even when the organism also has a recessive allele for the gene. In pea plants, the F allele, which causes purple flowers, is dominant over the f allele. A pea plant with at least one F allele will have the F allele's version of the flower color trait. So, a plant with the genotype FF or Ff will have purple flowers. A recessive allele causes its version of the trait to appear only when the organism does not have any dominant alleles for the gene. In pea plants, the f allele, which causes white flowers, is recessive to the F allele. A pea plant with only f alleles will have the f allele's version of the flower color trait. So, a plant with the genotype ff will have white flowers.

Briar's genotype for the fur texture gene is FF. Briar's genotype of FF has only F allelles. The F allele is for straight fur. So, Briar's phenotype for the fur texture trait must be straight fur. To check this answer, consider whether Briar's alleles are dominant or recessive. The allele for wavy fur (f) is recessive to the allele for straight fur (F). This means F is a dominant allele, and f is a recessive allele. Briar's genotype of FF has two dominant alleles. An organism with at least one dominant allele for a gene will have the dominant allele's version of the trait. So, Briar's phenotype for the fur texture trait must be straight fur.

Is the following trait inherited or acquired? Brett has naturally black hair.

closed choice

grade5

natural science

biology

Traits and heredity

Identify inherited and acquired traits

Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Children do not inherit their parents' acquired traits.

Humans do not choose their natural hair color. Some people dye their hair. But this does not change their natural hair color. Children get their natural hair color from their parents. So, Brett's hair color is an inherited trait.

Is there a sentence fragment? Monkeys and chimpanzees frequently raid the crops of Rwandan farmers. As a result, the farmers lose ten to twenty percent of their income.

yes or no

grade12

language science

writing-strategies

Sentences, fragments, and run-ons

Identify sentence fragments

A sentence is a group of words that expresses a complete thought. The band I'm in has been rehearsing daily because we have a concert in two weeks. A sentence fragment is a group of words that does not express a complete thought. Rehearsing daily because we have a concert in two weeks. This fragment is missing a subject. It doesn't tell who is rehearsing. The band I'm in. This fragment is missing a verb. It doesn't tell what the band I'm in is doing. Because we have a concert in two weeks. This fragment is missing an independent clause. It doesn't tell what happened because of the concert.

There is not a sentence fragment. These are complete sentences because they express complete thoughts. Monkeys and chimpanzees frequently raid the crops of Rwandan farmers. As a result, the farmers lose ten to twenty percent of their income.

Which animal's skin is also adapted for survival in cold places?

Musk oxen live in the Canadian Arctic and Greenland. The 's skin is adapted to help the animal survive in cold places. Figure: musk ox.

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 stay warm. Skin with sharp spines might help an animal defend itself against predators.

Look at the picture of the musk ox. The musk ox has skin with thick fur on top and a thick layer of fat underneath it. Its skin is adapted for survival in cold places. The musk ox uses its fur and fat to keep warm in cold weather. Now look at each animal. Figure out which animal has a similar adaptation. The snowy owl has a thick coat of feathers covering its skin. Its skin is adapted for survival in cold places. The Amazon milk frog has thin, moist skin. Its skin is not adapted for survival in cold places.

What is the capital of Idaho?

closed choice

grade4

social science

geography

State capitals

Identify the 50 state capitals

Boise is the capital of Idaho.

Which logical fallacy is used in the text? Don't try to tell me that you only watch educational programming, Valeria! I know for a fact that your sister only watches reality television.

closed choice

grade6

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 fallacy may present irrelevant information: Fallacy | Description ad hominem | a personal attack meant to discredit one's opponent appeal to nature | an argument that assumes the natural choice is always the best choice bandwagon fallacy | an argument that assumes the popular choice is always the best choice circular reasoning | an argument that supports a claim with the claim itself guilt by association | an unfair negative association with another person or group that is intended to discredit someone or something red herring | the use of a completely unrelated topic in support of a claim A logical fallacy may misrepresent the issues at hand: Fallacy | Description false causation | the assumption that because two things happened together, one caused the other false dichotomy | an argument that presents only two choices when more options exist hasty generalization | a very broad claim based on very little evidence straw man | a misrepresentation of an opponent's position that makes it easier to argue against

The text argues that Valeria must watch reality television, because her sister watches reality television. However, even though Valeria's sister watches reality television, that doesn't necessarily mean that Valeria does, too. This illustrates a type of logical fallacy known as guilt by association.

Compare the motion of two bats. Which bat was moving at a higher speed?

closed choice

grade2

natural science

physics

Force and motion

Compare the speeds of moving objects

An object's speed tells you how fast the object is moving. Speed depends on both distance and time. Distance tells you how far the object has moved. One unit used to measure distance is the kilometer. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about two objects moving for the same amount of time. The object that is moving faster will go a farther distance in that time. It is moving at a higher speed.

Look at the distance each bat moved and the time it took to move that distance. One bat moved 165 kilometers in 10 hours. The other bat moved 130 kilometers in 10 hours. Notice that each bat spent the same amount of time moving. The bat that moved 165 kilometers moved a farther distance in that time. So, that bat must have moved at a higher speed.

Which solution has a higher concentration of pink particles?

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 this case, the salt is the solute. The water is the solvent. The concentration of a solute in a solution is a measure of the ratio of solute to solvent. Concentration can be described in terms of particles of solute per volume of solvent. concentration = particles of solute / volume of solvent

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. Solution A has more pink particles per milliliter. So, Solution A has a higher concentration of pink particles.

Complete the sentence. The War of 1812 began in June of 1812 when () declared war on ().

closed choice

grade5

social science

us-history

Early 19th century American history

The War of 1812: events and effects

The War of 1812 began on June 18, 1812, when the United States declared war on Great Britain. President James Madison of the United States signed Congress's declaration of war against Great Britain.

What can Sasha and Franco trade to each get what they want?

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. Sasha and Franco open their lunch boxes in the school cafeteria. Neither Sasha nor Franco got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Sasha's lunch Franco's lunch

closed choice

grade8

social science

economics

Basic economic principles

Trade and specialization

Look at the table and images. Sasha wants broccoli. Franco 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.

Will these magnets attract or repel each other?

Two magnets are placed as shown.

closed choice

grade4

natural science

physics

Magnets

Identify magnets that attract or repel

Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south. Here are some examples of magnets. The north pole of each magnet is labeled N, and the south pole is labeled S. If opposite poles are closest to each other, the magnets attract. The magnets in the pair below attract. If the same, or like, poles are closest to each other, the magnets repel. The magnets in both pairs below repel.

To predict if these magnets will attract or repel, look at which poles are closest to each other. The north pole of one magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other.

Which word would you find on a dictionary page with the following guide words? veil - vote

closed choice

grade5

language science

reference-skills

Reference skills

Use guide words

Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order. To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second letters. If the second letters are the same, look at the third letters, and so on. If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order. For example, be comes before bed.

Put the words in alphabetical order. Since virus is between the guide words veil - vote, it would be found on that page.

Which of these cities is marked on the map?

closed choice

grade5

social science

geography

Cities

Major U.S. cities

The city is Atlanta, Georgia. Washington, D.C., San Antonio, and New Orleans are marked with gray circles on the map below.

Select the plant.

closed choice

grade2

natural science

biology

Classification

Identify plants and animals

Plants and animals are living things. Living things are called organisms. Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can. Animals also come in many shapes and sizes. Most animals can move around. Animals might run, swim, jump, or fly. Animals eat plants or other organisms for food.

A sea otter is an animal. It eats animals that live in the ocean. Sea otters have very thick fur. Their fur keeps them warm in cold water. A marsh marigold is a plant. It can grow yellow flowers. Marsh marigolds grow best in cool shady places.

Which property do these two objects have in common?

Select the better answer.

closed choice

grade2

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. Different objects can have the same properties. You can use these properties to put objects into groups.

Look at each object. For each object, decide if it has that property. A scratchy object is rough and itchy against your skin. Neither of the objects are scratchy. Sugar has a sweet taste. Both objects are sweet. The property that both objects have in common is sweet.

Based on this information, what is Skeeter's phenotype for the body hair trait?

In a group of deer mice, some individuals have a hairy body and others have a hairless body. In this group, the gene for the body hair trait has two alleles. The allele for a hairless body (b) is recessive to the allele for a hairy body (B). Skeeter is a deer mouse from this group. Skeeter has the homozygous genotype bb for the body hair gene.

closed choice

grade6

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 alleles, or forms, that can cause different versions of a trait. For example, flower color is a trait in pea plants. The gene for this trait has two possible alleles. Each allele is represented by an uppercase or lowercase letter. The allele F is for purple flowers, and the allele f is for white flowers. Each pea plant has two alleles for the flower color gene—one allele inherited from each parent. An organism's genotype for a gene is its combination of alleles for that gene. So, a pea plant may have a genotype of FF, Ff, or ff for the flower color gene. An organism's phenotype for a trait is its observable version of that trait, which depends on the organism's combination of alleles. A pea plant may have a phenotype of purple flowers or white flowers for the flower color trait. Some traits, like flower color in pea plants, are controlled by a single gene. Most plants and animals have a genotype made up of two alleles for these traits. These two alleles determine whether an organism is homozygous or heterozygous for the gene. An organism with two identical alleles for a gene is homozygous for that gene. A pea plant with the genotype FF or ff is homozygous for the flower color gene. An organism with two different alleles for a gene is heterozygous for that gene. A pea plant with the genotype Ff is heterozygous for the flower color gene. The types of alleles in an organism's genotype determine the organism's phenotype. Some alleles have types called dominant and recessive. These two types can cause different versions of a trait to appear as the organism's phenotype. A dominant allele causes its version of the trait to appear even when the organism also has a recessive allele for the gene. In pea plants, the F allele, which causes purple flowers, is dominant over the f allele. A pea plant with at least one F allele will have the F allele's version of the flower color trait. So, a plant with the genotype FF or Ff will have purple flowers. A recessive allele causes its version of the trait to appear only when the organism does not have any dominant alleles for the gene. In pea plants, the f allele, which causes white flowers, is recessive to the F allele. A pea plant with only f alleles will have the f allele's version of the flower color trait. So, a plant with the genotype ff will have white flowers.

Skeeter's genotype for the body hair gene is bb. Skeeter's genotype of bb has only b alleles. The b allele is for a hairless body. So, Skeeter's phenotype for the body hair trait must be a hairless body. To check this answer, consider whether Skeeter's alleles are dominant or recessive. The allele for a hairless body (b) is recessive to the allele for a hairy body (B). This means B is a dominant allele, and b is a recessive allele. Skeeter's genotype of bb has only recessive alleles. An organism with only recessive alleles for a gene will have the recessive allele's version of the trait. So, Skeeter's phenotype for the body hair trait must be a hairless body.

Compare the motion of two geese. Which goose was moving at a higher speed?

closed choice

grade2

natural science

physics

Force and motion

Compare the speeds of moving objects

An object's speed tells you how fast the object is moving. Speed depends on both distance and time. Distance tells you how far the object has moved. One unit used to measure distance is the mile. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about two objects moving for the same amount of time. The object that is moving faster will go a farther distance in that time. It is moving at a higher speed.

Look at the distance each goose moved and the time it took to move that distance. One goose moved 640 miles in 10 hours. The other goose moved 290 miles in 10 hours. Notice that each goose spent the same amount of time moving. The goose that moved 640 miles moved a farther distance in that time. So, that goose must have moved at a higher speed.

What is the direction of this push?

A hockey player takes a shot with his hockey stick. His stick pushes the puck down the ice.

closed choice

grade2

natural science

physics

Force and motion

Identify pushes and pulls

One object can make another object move with a push or a pull. The direction of a push is away from the object that is pushing. The direction of a pull is toward the object that is pulling.

The hockey player's shot is a type of push. He shoots the puck away from his stick and sends it down the ice. The direction of the push is away from the hockey stick.

Is an egg white a solid, a liquid, or a gas?

closed choice

grade4

natural science

physics

States of matter

Identify and sort solids, liquids, and gases

Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms. When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own. Some solids can be easily folded, bent, or broken. A piece of paper is a solid. Also, some solids are very small. A grain of sand is a solid. When matter is a liquid, it has a definite volume but not a definite shape. So, a liquid has a size of its own, but it does not have a shape of its own. Think about pouring juice from a bottle into a cup. The juice still takes up the same amount of space, but it takes the shape of the bottle. Some liquids are thicker than others. Honey and milk are both liquids. But pouring honey takes more time than pouring milk. When matter is a gas, it does not have a definite volume or a definite shape. A gas expands, or gets bigger, until it completely fills a space. A gas can also get smaller if it is squeezed into a smaller space. Many gases are invisible. The oxygen you breathe is a gas. The helium in a balloon is also a gas.

An egg white is a liquid. A liquid can change shape. But it still takes up the same amount of space. If you crack open an egg and pour it into a pan, the egg white will change shape.

Is a book a good or a service?

closed choice

grade3

social science

economics

Basic economic principles

Goods and services

Everything you can buy is either a good or a service. A good is something you can touch or hold in your hands. For example, a hammer is a good. A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service.

To decide whether a book is a good or a service, ask these questions: Is a book something you can touch? Yes. Is a book a job you might pay someone else to do? No. So, a book is a good.

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

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 the substance and the higher the average speed of the particles, the higher their average kinetic energy.

The particles in both samples have the same average speed, but each particle in sample A has more mass than each particle in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B. Because the particles in sample A have the higher average kinetic energy, sample A must have the higher temperature.

What is the temperature of a cool glass of milk?

Select the better estimate.

closed choice

grade7

natural science

units-and-measurement

Units and measurement

Estimate temperatures

Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units. 212°F | Water boils | 100°C 98.6°F | Body temperature | 37°C 68°F | Room temperature | 20°C 32°F | Water freezes | 0°C

The better estimate for the temperature of a cool glass of milk is 50°F. 50°C is too hot.

Which logical fallacy is used in the text? Don't try to tell me that you only watch educational programming, Nellie! I know for a fact that your sister only watches reality television.

closed choice

grade8

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 fallacy may present irrelevant information: Fallacy | Description ad hominem | a personal attack meant to discredit one's opponent appeal to nature | an argument that assumes the natural choice is always the best choice bandwagon fallacy | an argument that assumes the popular choice is always the best choice circular reasoning | an argument that supports a claim with the claim itself guilt by association | an unfair negative association with another person or group that is intended to discredit someone or something red herring | the use of a completely unrelated topic in support of a claim A logical fallacy may misrepresent the issues at hand: Fallacy | Description false causation | the assumption that because two things happened together, one caused the other false dichotomy | an argument that presents only two choices when more options exist hasty generalization | a very broad claim based on very little evidence straw man | a misrepresentation of an opponent's position that makes it easier to argue against

The text argues that Nellie must watch reality television, because her sister watches reality television. However, even though Nellie's sister watches reality television, that doesn't necessarily mean that Nellie does, too. This illustrates a type of logical fallacy known as guilt by association.

In this food web, which organism contains matter that eventually moves to the mushroom?

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

grade7

natural science

biology

Ecological interactions

Interpret food webs II

A food web is a model. A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web shows how some organisms in an ecosystem can get their food. Arrows show how matter moves. A food web has arrows that point from one organism to another. Each arrow shows the direction that matter moves when one organism eats another organism. An arrow starts from the organism that is eaten. The arrow points to the organism that is doing the eating. An organism in a food web can have more than one arrow pointing from it. This shows that the organism is eaten by more than one other organism in the food web. An organism in a food web can also have more than one arrow pointing to it. This shows that the organism eats more than one other organism in the food web.

Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows to the mushroom. The only arrow pointing from the parasitic jaeger leads to the rough-legged hawk. The only arrow pointing from the rough-legged hawk leads to the earthworm. No arrows point from the earthworm to any other organisms. So, in this food web, matter does not move from the parasitic jaeger to the mushroom.There are two paths matter can take from the barren-ground caribou to the mushroom: barren-ground caribou->mushroom. barren-ground caribou->grizzly bear->mushroom. There is one path matter can take from the bilberry to the mushroom: bilberry->grizzly bear->mushroom. There is one path matter can take from the grizzly bear to the mushroom: grizzly bear->mushroom. There are two paths matter can take from the lichen to the mushroom: lichen->barren-ground caribou->mushroom. lichen->barren-ground caribou->grizzly bear->mushroom.

Which correctly shows the title of a movie?

closed choice

grade9

language science

punctuation

Formatting

Formatting titles

The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead. A Midsummer Night's Dream The title of a poem, song, article, or short story should be in quotation marks. "You Are My Sunshine"

A movie should be in italics. The correct title is **Raiders of the Lost Ark**.

Which word does not rhyme?

closed choice

grade2

language science

phonological-awareness

Rhyming

Which word does not rhyme?

Rhyming words are words that end with the same sound. The words tip and slip rhyme. They both end with the same sound. The words meet and treat also rhyme. They both end with the same sound, even though the sound has two different spellings. The words tip and meet don't rhyme. They end with different sounds.

The words win and tin rhyme. They both end with the in sound. The word fan does not rhyme. It ends with a different sound.

What is the volume of a car's gas tank?

Select the best estimate.

closed choice

grade5

natural science

units-and-measurement

Units and measurement

Choose customary units of volume

Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means. Volume is a measurement of how much space something takes up. There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups, or gallons. As the diagram shows, there are 8 fluid ounces in 1 cup and 16 cups in 1 gallon. So, 1 fluid ounce is less than 1 cup and much less than 1 gallon. A glass of milk has a volume of about 8 fluid ounces, or 1 cup. A jug of milk has a volume of 1 gallon.

The best estimate for the volume of a car's gas tank is 13 gallons. 13 fluid ounces and 13 cups are both too little.

What is the source of the allusion in the sentence below? Emilio spoke at the city council meeting, claiming the new recycling regulations were draconian.

closed choice

grade7

language science

figurative-language

Literary devices

Recall the source of an allusion

An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words. "I'd better get home before I turn into a pumpkin!" Lila remarked. Here, Lila alludes to the fairy tale "Cinderella," in which Cinderella must leave the ball before the coach that brought her transforms into a pumpkin. The allusion shows that Lila must depart immediately.

The source of the allusion draconian is Greek history. Draco, a government official in seventh-century Athens, Greece, wrote a code of laws that called for severe punishments for even minor offenses. The allusion draconian means harsh.

How long is an adult great white shark?

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 larger than 1 centimeter, and 1 centimeter is larger than 1 millimeter. The tip of the pencil shown here is only 1 millimeter wide, but the pencil is about 16 centimeters long. A red fox is about 1 meter long. The Sydney Harbour Bridge in Australia is about 1,000 meters, or 1 kilometer, in length.

The best estimate for the length of an adult great white shark is 6 meters. 6 millimeters and 6 centimeters are too short. 6 kilometers is too long.

Which animal is also adapted to be camouflaged in a sandy desert?

Flat-tail horned lizards live in the deserts of North America. The is adapted to be camouflaged in a sandy desert. Figure: flat-tail horned lizard.

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 stay warm. Skin with sharp spines might help an animal defend itself against predators.

Look at the picture of the flat-tail horned lizard. The flat-tail horned lizard has sand-colored scales covering its body. It is adapted to be camouflaged in a sandy desert. The word camouflage means to blend in. Now look at each animal. Figure out which animal has a similar adaptation. The Namaqua chameleon has sand-colored scales covering its body. It is adapted to be camouflaged in a sandy desert. The strawberry poison frog has brightly colored skin. It is not adapted to be camouflaged in a sandy desert.

What information supports the conclusion that Tim acquired this trait?

Read the description of a trait. Tim speaks two languages.

closed choice

grade4

natural science

biology

Traits and heredity

Inherited and acquired traits: use evidence to support a statement

Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways. Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment.

Compare the motion of two fish. Which fish was moving at a lower speed?

closed choice

grade2

natural science

physics

Force and motion

Compare the speeds of moving objects

An object's speed tells you how fast the object is moving. Speed depends on both distance and time. Distance tells you how far the object has moved. One unit used to measure distance is the kilometer. Time tells you how long the object has spent moving. One unit used to measure time is the hour. Think about two objects moving for the same amount of time. The object that is moving slower will go a shorter distance in that time. It is moving at a lower speed.

Look at the distance each fish moved and the time it took to move that distance. One fish moved 20 kilometers in 5 hours. The other fish moved 25 kilometers in 5 hours. Notice that each fish spent the same amount of time moving. The fish that moved 20 kilometers moved a shorter distance in that time. So, that fish must have moved at a lower speed.

Using only these supplies, which question can Garrett investigate with an experiment?

Garrett enjoys feeding the squirrels in his backyard. He notices that they spend a lot of time collecting seeds and nuts. He wonders about what factors affect which foods squirrels choose to collect. So, he decides to design an experiment. He has the following supplies available: two identical squirrel feeders a bag of sunflower seeds a bag of walnuts a tree to hang the feeders from

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 grow to different heights when planted in different types of soil. How might you decide what supplies are necessary to conduct this experiment? First, you need to identify the part of the experiment that will be tested, which is the independent variable. This is usually the part of the experiment that is different or changed. In this case, you would like to know how plants grow in different types of soil. So, you must have different types of soil available. Next, you need to identify the part of the experiment that will be measured or observed, which is the dependent variable. In this experiment, you would like to know if some plants grow taller than others. So, you must be able to compare the plants' heights. To do this, you can observe which plants are taller by looking at them, or you can measure their exact heights with a meterstick. So, if you have different types of soil and can observe or measure the heights of your plants, then you have the supplies you need to investigate your question with an experiment!

Which continent is highlighted?

closed choice

grade8

social science

geography

Physical Geography

Oceans and continents

A continent is one of the major land masses on the earth. Most people say there are seven continents.

This continent is Europe.

What kind of sentence is this? Give Daniel a tour of the building and then take him to Mr. Carlson's office.

closed choice

grade6

language science

punctuation

Sentences, fragments, and run-ons

Is the sentence declarative, interrogative, imperative, or exclamatory?

There are four kinds of sentences. A declarative sentence is a statement, and it always ends with a period. The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure. An interrogative sentence is a question, and it always ends with a question mark. Do you have any plans for the upcoming weekend? An imperative sentence is a command. It makes a request or tells someone to do something, and it usually ends with a period. If the command shows strong feeling, it ends with an exclamation point. For this assignment, use references to support your claims. Don't drive so quickly in the construction zone! An exclamatory sentence is like a statement, but it shows surprise or strong feeling. An exclamatory sentence always ends with an exclamation point. I can't wait to travel through Europe this summer!

The sentence tells someone to do something, so it is an imperative sentence. Here, it ends with a period.

What information supports the conclusion that Rick inherited this trait?

Read the description of a trait. Rick has curly hair.

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. Offspring receive their genes, and therefore gain their inherited traits, from their biological parents. Inherited traits do not need to be learned. Acquired traits are gained during a person's life. Some acquired traits, such as riding a bicycle, are gained by learning. Other acquired traits, such as scars, are caused by the environment. Parents do not pass acquired traits down to their offspring.