examples16

id: 9238

question: Below are three examples of using energy from natural resources. Select the use of energy that did not add to air pollution.

choice: (A) A wood-burning oven was used to bake a pizza. (B) The engine on a container ship burned fuel made from petroleum oil. (C) A river's flowing water carried logs downstream to a sawmill.

context: Humans have invented many ways to use energy from natural resources. Some of these uses of energy add to air pollution, and others do not. Hint: Burning a material such as wood, oil, or coal releases chemicals that add to air pollution.

gold answer: C

wrong prediction:

Rationale:

0: Humans have invented many ways to use natural resources.
1: We use energy from natural resources in our daily activities, including cooking food, moving objects, and powering machines.
2: Some ways of using natural resources for energy add to air pollution, and others do not.
3: Wood, oil, and coal are examples of natural resources that are fuels.
4: Burning a fuel provides energy.
5: But it also releases chemicals that can be harmful to our health and to the environment.
6: These chemicals add to air pollution.
7: Sunlight, wind, and water are natural resources that can provide energy.
8: Using energy from the Sun, wind, or water does not burn material.
9: These uses of energy do not release chemicals that add to air pollution.
10: The answer is B.

id: 9292

question: Will these magnets attract or repel each other?

choice: (A) attract (B) repel

context: Two magnets are placed as shown.

gold answer: B

wrong prediction:

Rationale:

0: Magnets can pull or push on other magnets without touching them.
1: When magnets attract, they pull together.
2: When magnets repel, they push apart.
3: These pulls and pushes are called magnetic forces.
4: Magnetic forces are strongest at the magnets' poles, or ends.
5: Every magnet has two poles: a north pole (N) and a south pole (S).
6: Here are some examples of magnets.
7: Their poles are shown in different colors and labeled.
8: Whether a magnet attracts or repels other magnets depends on the positions of its poles.
9: If opposite poles are closest to each other, the magnets attract.
10: The magnets in the pair below attract.
11: If the same, or like, poles are closest to each other, the magnets repel.
12: The magnets in both pairs below repel.
13: To predict if these magnets will attract or repel, look at which poles are closest to each other.
14: The south pole of one magnet is closest to the north pole of the other magnet.
15: Opposite poles attract.
16: So, these magnets will attract each other.
17: The answer is A.

id: 9408

question: The Inca created a large civilization in South America. Which letter marks the territory of the Inca?

choice: (A) D (B) B (C) A (D) C

context: The following map shows the location of several civilizations that began in North and South America. Civilizations are organized human communities. Look at the map. Then answer the question below.

gold answer: A

wrong prediction:

Rationale:

0: Look at the map.
1: The Inca created a large civilization in South America.
2: Some of the places that were part of the Inca civilization are marked with the letter B.
3: The letter D marks the territory of the Delaware people.
4: The Delaware people were not part of the Inca civilization.
5: The answer is B.

id: 9412

question: Is this a sentence fragment? In the fifth and sixth centuries, more than fifty thousand Buddhist statues carved into the rock of the Yungang Grottoes of China.

choice: (A) yes (B) no

gold answer: A

wrong prediction:

Rationale:

0: A sentence is a group of words that expresses a complete thought.
1: The band I'm in has been rehearsing daily because we have a concert in two weeks.
2: A sentence fragment is a group of words that does not express a complete thought.
3: Rehearsing daily because we have a concert in two weeks.
4: This fragment is missing a subject.
5: It doesn't tell who is rehearsing.
6: The band I'm in.
7: This fragment is missing a verb.
8: It doesn't tell what the band I'm in is doing.
9: Because we have a concert in two weeks.
10: This fragment is missing an independent clause.
11: It doesn't tell what happened because of the concert.
12: This is not a sentence fragment.
13: It is a complete sentence because it expresses a complete thought.
14: In the fifth and sixth centuries, more than fifty thousand Buddhist statues carved into the rock of the Yungang Grottoes of China.
15: The answer is B.

id: 9532

question: Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

choice: (A) The magnitude of the magnetic force is smaller in Pair 2. (B) The magnitude of the magnetic force is smaller in Pair 1. (C) The magnitude of the magnetic force is the same in both pairs.

context: 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.

gold answer: B

wrong prediction:

Rationale:

0: Magnets can pull or push on each other without touching.
1: When magnets attract, they pull together.
2: When magnets repel, they push apart.
3: These pulls and pushes between magnets are called magnetic forces.
4: The strength of a force is called its magnitude.
5: The greater the magnitude of the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
6: You can change the magnitude of a magnetic force between two magnets by using magnets of different sizes.
7: The magnitude of the magnetic force is smaller when the magnets are smaller.
8: The magnets in Pair 2 attract.
9: The magnets in Pair 1 repel.
10: But whether the magnets attract or repel affects only the direction of the magnetic force.
11: It does not affect the magnitude of the magnetic force.
12: Magnet sizes affect the magnitude of the magnetic force.
13: Imagine magnets that are the same shape and made of the same material.
14: The smaller the magnets, the smaller the magnitude of the magnetic force between them.
15: Magnet A is the same size in both pairs.
16: But Magnet B is smaller in Pair 2 than in Pair 1.
17: So, the magnitude of the magnetic force is smaller in Pair 2 than in Pair 1.
18: The answer is A.

id: 9543

question: Which type of force from the baby's hand opens the cabinet door?

choice: (A) pull (B) push

context: A baby wants to know what is inside of a cabinet. His hand applies a force to the door, and the door opens.

gold answer: A

wrong prediction:

Rationale:

0: A force is a push or a pull that one object applies to a second object.
1: The direction of a push is away from the object that is pushing.
2: The direction of a pull is toward the object that is pulling.
3: The baby's hand applies a force to the cabinet door.
4: This force causes the door to open.
5: The direction of this force is away from the baby's hand.
6: This force is a push.
7: The answer is B.

id: 9547

question: Which word would you find on a dictionary page with the following guide words? behave - breakfast

choice: (A) babies (B) bike

gold answer: B

wrong prediction:

Rationale:

0: Guide words appear on each page of a dictionary.
1: They tell you the first word and last word on the page.
2: The other words on the page come between the guide words in alphabetical order.
3: To put words in alphabetical order, put them in order by their first letters.
4: If the first letters are the same, look at the second letters.
5: If the second letters are the same, look at the third letters, and so on.
6: If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order.
7: For example, be comes before bed.
8: Put the words in alphabetical order.
9: Since babies is between the guide words behave - breakfast, it would be found on that page.
10: The answer is A.

id: 9553

question: Which solution has a higher concentration of yellow particles?

choice: (A) Solution A (B) neither; their concentrations are the same (C) Solution B

context: The diagram below is a model of two solutions. Each yellow ball represents one particle of solute.

gold answer: A

wrong prediction:

Rationale:

0: A solution is made up of two or more substances that are completely mixed.
1: In a solution, solute particles are mixed into a solvent.
2: The solute cannot be separated from the solvent by a filter.
3: 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.
4: In this case, the salt is the solute.
5: The water is the solvent.
6: The concentration of a solute in a solution is a measure of the ratio of solute to solvent.
7: Concentration can be described in terms of particles of solute per volume of solvent.
8: concentration = particles of solute / volume of solvent In Solution A and Solution B, the yellow particles represent the solute.
9: To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
10: Use the concentration formula to find the number of yellow particles per milliliter.
11: Solution B has more yellow particles per milliliter.
12: So, Solution B has a higher concentration of yellow particles.
13: The answer is C.

id: 9685

question: Which solution has a higher concentration of yellow particles?

choice: (A) Solution A (B) neither; their concentrations are the same (C) Solution B

context: The diagram below is a model of two solutions. Each yellow ball represents one particle of solute.

gold answer: A

wrong prediction:

Rationale:

0: A solution is made up of two or more substances that are completely mixed.
1: In a solution, solute particles are mixed into a solvent.
2: The solute cannot be separated from the solvent by a filter.
3: 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.
4: In this case, the salt is the solute.
5: The water is the solvent.
6: The concentration of a solute in a solution is a measure of the ratio of solute to solvent.
7: Concentration can be described in terms of particles of solute per volume of solvent.
8: concentration = particles of solute / volume of solvent In Solution A and Solution B, the yellow particles represent the solute.
9: To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
10: Use the concentration formula to find the number of yellow particles per milliliter.
11: Solution B has more yellow particles per milliliter.
12: So, Solution B has a higher concentration of yellow particles.
13: The answer is C.

id: 9691

question: Which text uses the word random in its traditional sense?

choice: (A) During the nineteenth century, the U.S. Army used camels as pack animals in the Southwest. Though the program was discontinued after the outbreak of the Civil War, reported sightings of random camels throughout the Southwest continued through at least the 1940s. (B) Camels in the wild tend to eat an apparently random assortment of leaves, grasses, shrubs, and other plant matter. As an adaptation to their native desert environment, they are able to eat even thorny and salt-heavy plants that most animals will reject.

gold answer: B

wrong prediction:

Rationale:

0: Words change in meaning when speakers begin using them in new ways.
1: For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
2: When a word changes in meaning, its correct usage is often debated.
3: Although a newer sense of the word may be more commonly used, many people consider a word's traditional definition to be the correct usage.
4: Being able to distinguish the different uses of a word can help you use it appropriately for different audiences.
5: Britney perused her notes, carefully preparing for her exam.
6: The traditional usage above is considered more standard.
7: David perused the magazine, absentmindedly flipping through the pages.
8: The nontraditional usage above is now commonly used, but traditional style guides generally advise against it.
9: The second text uses random in its traditional sense: made or occurring without a definite pattern.
10: During the nineteenth century, the U.S. Army used camels as pack animals in the Southwest.
11: Though the program was discontinued after the outbreak of the Civil War, reported sightings of random camels throughout the Southwest continued through at least the 1940 s. The first text uses random in its nontraditional sense: odd or ominous.
12: Camels in the wild tend to eat an apparently random assortment of leaves, grasses, shrubs, and other plant matter.
13: As an adaptation to their native desert environment, they are able to eat even thorny and salt-heavy plants that most animals will reject.
14: Most style guides recommend to avoid using the nontraditional sense of the word random because it is generally considered incorrect.
15: The answer is A.