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Worksheets

7th Grade End of Year Review

Total questions: 204

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

What term (word) means having the necessary conditions to support life?

a)

biosphere

b)

landform

c)

habitable

d)

geological process

2.

What term (word) represents all the liquid water and solid water (ice) on a planet?

a)

atmosphere

b)

biosphere

c)

geosphere

d)

hydrosphere

3.

What term (word) represents the solid part of a rocky planet?

a)

atmosphere

b)

biosphere

c)

geosphere

d)

hydrosphere

4.

What term (word) represents the mixture of gases that surrounds a planet?

a)

atmosphere

b)

biosphere

c)

geosphere

d)

hydrosphere

5.

Which of the following can be considered best example of Earth's biosphere?

a)
b)
c)
d)
6.

Which image shows the best example of the geosphere?

a)
b)
c)
d)
7.

Mars is a place to look for potential life because

a)

The temperature is reasonably close to that of Earth due to the sun as a source of energy

b)

Water

c)

Both

8.

Which of the following conditions are necessary for a planet to be considered habitable? (select all correct answers)

a)

needs oxygen

b)

has liquid water

c)

has frozen water

d)

has an available energy source

9.

Mercury, Venus, Earth, and Mars are these types of planets

a)

rocky planets

b)

gas giants

c)

life producers

d)

perfect spheres

10.

One of the main reasons scientists wanted to observe Mars for possible life is because of

a)

the polar ice caps at the top and bottom with evidence that it may have once been liquid

b)

tracks on the surface

c)

phenomenal atmosphere that could support life

d)

abundant liquid water on the surface

11.

A scientist who studies the geospheres of planets other than Earth.

a)

planetary geologist

b)

zoologist

c)

biologist

d)

physicist

12.

Beneath the continents and oceans of the Earth, there is hard and solid rock.

a)

True

b)

False

13.

Beneath the surface, the Earth's outer layer is...

a)

Made of sand and water

b)

Made of hard, solid rock

c)

Beneath the land it is made of hard, solid rock and beneath the water it is made of sand

d)

Made of water

14.

Which image shows what happens at a divergent plate boundary?

a)
b)
c)
d)
15.

What could explain how these fossils came to be so far apart?

a)

As the plates slowly moved, solid and soft rock was added from below to the edges of the plates over millions of years.

b)

The plates floated away from each other across the ocean.

c)

The plates slowly moved as new plates were added from below between them over millions of years.

d)

The plates were sometimes pushed very far by earthquakes, and solid and soft rock was added from below to the edges of the plates.

16.

What does this image show an example of?

a)

Plate Boundary

b)

Plate

c)

Outer Layer

d)

Cross Section

17.

What does vertically mean?

a)

Across

b)

Up and down

18.

Where can geologists find hard and solid rock?

a)

Only under 1

b)

Only under 2

c)

Neither under 1 nor under 2

d)

Under both 1 and 2

19.

What is the mantle made of?

a)

Hard and solid rock

b)

Soft and solid rock

c)

Water

d)

Gelatin

20.

Which image shows what happens at a convergent plate boundary?

a)
b)
c)
d)
21.

True or False: Do plates float across the ocean?

a)

True

b)

False

22.

True or False: Do earthquakes CAUSE the movement of the plates?

a)

True

b)

False

23.

True or False: Are earthquakes a RESULT of plate movement?

a)

True

b)

False

24.

What is a Pattern?

a)

Something we observe that is similar over and over again

b)

The place where two plates meet

c)

An object or diagram that helps us understand something

25.

What could explain why Africa is closer to Europe now than before?

a)

The plates floated towards each other.

b)

The plates were sometimes pushed towards each other by earthquakes, and one plate slid under the other plate into solid and soft rock.

c)

The plates slowly moved towards each other over millions of years. When the plates collided, they broke into smaller pieces.

d)

The plates slowly moved towards each other while one plate slid under the other plate into solid and soft rock over millions of years.

26.

What is a plate boundary?

a)

One of the very large sections of hard, solid rock that make up the Earth's outer layer

b)

The place where two plates meet

c)

The outermost layer of the Earth, made of hard, solid rock

27.

A mid-ocean ridge is formed by what type of plate movement?

a)

Convergent

b)

Transform

c)

Divergent

28.

A sudden shaking of the Earth's surface is called:

a)

An earthquake

b)

A plate boundary

c)

Convergence

d)

The Mantle

29.

Evidence of past life is known as:

a)

A plate

b)

A fossil

c)

A geyser

30.

Under the soil, vegetation, and water you will find:

a)

Dirt

b)

Sand

c)

Outer layer of the Earth

31.

How often or how quickly does something happen?

a)

The rate

b)

A plate boundary

c)

An earthquake

32.

Based on the information, are rocks A and B the same or different? Rock A formed from small pieces of rock, rock B formed from liquid rock in a different place, and rocks A and B formed at the same time.

a)

Same type because both formed from rock material.

b)

Same type because they formed at the same time.

c)

Different types because they formed in different ways.

d)

Different types because they formed in different places.

33.

Bob passes by a building every day on his way to school. He notices that the rock used to build the walls of the building is different from the rock used to build the steps. How might energy have played a role in the formation of the different types of rock?

a)

Energy from different sources leads to different types of rock. Energy within the Earth melts rock into liquid rock, but energy from the sun causes rock to wear down into small pieces of rock.

b)

Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.

c)

Energy caused one type of rock to form, but not the other. The rock that forms due to energy is a different type of rock than the rock that forms without energy.

d)

Energy changes rock on different continents in different ways. Each continent on Earth has different rocks that can form liquid rock or small pieces of rock when exposed to energy.

34.

Could the material of igneous rock come from sedimentary rock?

a)

Yes, if the sedimentary rock is exposed to the sun's energy on the Earth's surface for a long time, it can melt into liquid rock and form igneous rock.

b)

Yes, if the sedimentary rock moves beneath the Earth's outer layer and is exposed to the Earth's internal energy, it can melt into liquid rock and form igneous rock.

c)

No, igneous rock can only form from another igneous rock. Sedimentary rock cannot become igneous rock.

d)

No, igneous rock forms beneath the Earth's outer layer due to the Earth's internal energy, but sedimentary rock only forms on the Earth's surface.

35.

On the island of Hawaii, Paul notices that the sand on the beach is black, the same color as the rock formations on the island. Paul realizes that the sand used to be part of the rock formations. How did the material from the rock formations turn into sand?

a)

The rays of the sun shone on the rock and it broke into pieces.

b)

If something were left outside for a long time, it would break into small pieces.

c)

The sand was formed by earthquakes, tsunamis, and other natural disasters. These disasters were strong enough to break the rock into small pieces.

d)

The wind and rain interacted with the rock, breaking it into small pieces.

36.

How is a metamorphic rock formed?

a)

Rocks do not form; they stay as they are.

b)

It melted and cooled.

c)

It broke into sediments and then compacted.

d)

It was heated and subjected to pressure.

37.

Mary and her family are going on a trip and driving over a mountain range. Mary wonders how the rock they see while driving over the mountain range might be different when they return home next week. What would you tell Mary about how the rock will change?

a)

The rock will probably change a lot. The rock is always changing and transforming.

b)

The rock will probably not change much. Most rock transformation processes occur very slowly.

c)

The rock will not change at all. The rock simply stays as it is.

d)

The rock could change if it is the right season.

38.

Africa and Europe are very close to each other, but they used to be far apart. Which diagram above shows what happened to the plates that Africa and Europe are part of?

a)
b)
c)
d)
39.

What makes rocks different?

a)

Where they are found

b)

How they are formed

c)

When they are formed

40.

How can energy play a role in the formation of different types of rock?

a)

The energy from different sources leads to different types of rock. The energy within the Earth melts rock into liquid rock, but the energy from the sun causes rock to wear down into small pieces of rock.

b)

Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.

c)

Energy changes rock on different continents in different ways. Each continent on Earth has different rocks that can form liquid rock or small pieces when exposed to energy.

d)

Energy caused one type of rock to form, but not the other. The rock that forms due to energy is a different type of rock than the rock that forms without energy.

41.

Can sedimentary rock material ever form igneous rock?

a)

No, igneous rock can only form from other igneous rocks. Sedimentary rock cannot become igneous rock.

b)

No, igneous rock forms beneath the Earth's outer layer due to energy from within the Earth, but sedimentary rock is only on the Earth's surface.

c)

Yes, if sedimentary rock is exposed to the sun's energy on the Earth's surface for a long enough time, it can melt into liquid rock and form igneous rock.

d)

Yes, if sedimentary rock moves beneath the Earth's outer layer and is exposed to energy from within the Earth, it can melt into liquid rock and form igneous rock.

42.

During a hike on a mountain, Alex sees small pieces of rock along the trail. The small pieces resemble the rock that the mountain is made of. How did these small pieces of rock break off from the mountain?

a)

The wind and rain interacted with the rock, breaking it into small pieces.

b)

The small pieces of rock were formed by earthquakes, tsunamis, and other natural disasters. These disasters were strong enough to break the rock into small pieces.

c)

The rays of the sun shone on the rock and broke it into pieces.

d)

If something were left outside for a long time, it would break into small pieces.

43.

Is it possible for an igneous rock formation beneath the Earth's outer layer to become a sedimentary rock formation?

a)

Yes, if the igneous rock moves to the Earth's surface and is exposed to the sun's energy, it could wear down into small rock fragments that could form sedimentary rock.

b)

Yes, the energy from within the Earth can cause the igneous rock to break into small rock fragments that form sedimentary rock.

c)

No, sedimentary rock forms on the Earth's surface because the sun's energy causes the rock to wear down, but igneous rock beneath the Earth's outer layer is not exposed to the sun's energy.

d)

No, sedimentary rock can only form from material from another sedimentary rock. There is no way for sedimentary rock to form from material in igneous rock.

44.

A sedimentary rock can transform into an igneous rock.

a)

True

b)

False

45.

Define Subduction:

a)

The process of breaking down rock into smaller pieces due to wind or moving water

b)

The process by which all rock formations in a region are pushed upward due to plate movement

c)

The type of rock that forms when sediment is pressed and sticks together

d)

The process by which rock material moves under the Earth's outer layer and into the mantle due to plate movement

46.

What type of rock forms when magma cools and solidifies?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

47.

What process creates a sedimentary rock?

a)

Cooling below the surface

b)

Compaction and cementation

c)

Cooling on the surface

d)

Melting

48.

What is magma?

a)

Hot liquid rock beneath the Earth's surface

b)

Anything that has mass and occupies space

c)

One of the many different types of matter that make up rocks

d)

The place where two plates meet

49.

What is weathering?

a)

The process by which all rock formations in a region are pushed upward due to plate movement

b)

The process by which rock material moves under the Earth's outer layer and into the mantle due to plate movement

c)

The process of breaking down rock into smaller pieces due to wind or moving water

d)

The movement of sediments from one place to another, often caused by wind or running water

50.

What type of rock is formed when heat or pressure deep underground changes existing rock?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

51.

What type of rock is formed when sediment is pressed and glued together?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

52.

Scientists find two substances. One is a toxic chemical. The other is a safe chemical. Both chemicals are liquids at room temperature. As a test, the scientists transfer the same amount of energy OUT of the two containers and find that only the toxic chemical changes phase. How is the toxic chemical different from the safe chemical?

a)

weaker attraction between its molecules than the safe chemical. Its molecules now move in place.

b)

weaker attraction between its molecules than the safe chemical. Its molecules now move around each other.

c)

stronger attraction between its molecules than the safe chemical. Its molecules now move away from each other.

d)

stronger attraction between its molecules than the safe chemical. Its molecules now move in place.

53.

César and Ming were investigating a transparent container of water. Water can be solid, liquid, or gaseous. At first, César and Ming said that the water molecules were moving in place. Later, the water molecules were moving around each other. What change did they observe in the water?

a)

At first, the water was a gas. Later, it was a liquid.

b)

At first, the water was a liquid. Later, it was a solid.

c)

At first, the water was a solid. Later, it was a liquid.

d)

At first, the water was a liquid. Later, it was a gas.

54.

A company uses a substance that is solid under normal conditions. This substance will be used under extreme conditions, which could cause the molecules of the substance to move faster and lead to a phase change. How would this phase change occur and how would the molecules of the substance be affected under these extreme conditions?

The energy would be transferred . . .

a)

OUT of the substance, and its molecules would move away from each other.

b)

OUT of the substance, and its molecules would move around each other.

c)

INTO the substance, and its molecules would move around each other.

d)

INTO the substance, and its molecules would move in place.

55.

The image above shows information about two different substances in sealed containers. At room temperature, both substances are liquids. A scientist transfers the same amount of energy to both substances. One substance changes phase, but the other does not. Which substance changed phase and why did it change?

a)

Substance A changed phase because its molecules were able to move fast enough to overcome the attraction between them. Its molecules are now moving away from each other.

b)

Substance A changed phase because the weak attraction between its molecules allowed them to move faster. Its molecules are now moving away from each other.

c)

Substance B changed phase because the molecules were able to move fast enough to overcome the attraction between them. Its molecules are now moving away from each other.

d)

Substance B changed phase because the strong attraction between the molecules made their movement slower. Its molecules are now moving in place.

56.

Refrigerators are able to transfer energy out of a substance. At first, the substance is a gas. The refrigerator changes the phase of the substance by transferring energy out of it. How does this change affect the substance’s molecules?

After the phase change, the molecules move . . .

a)

slower, and they move away from each other.

b)

slower, and they move around each other.

c)

faster, and they move around each other.

d)

faster, and they move in place.

57.

Maggie left a sealed jar of water outside her home. Water can be a solid, liquid, or gas. When she put it outside, the water was a solid. Twelve hours later, the water had changed phase and was a liquid. What happened to the water molecules?

a)

Before the student left, the molecules were moving in place. After, the molecules were moving around each other.

b)

Before the student left, the molecules were moving around each other. After, the molecules were moving away from each other.

c)

Before the student left, the molecules were moving around each other. After, the molecules were moving in place.

d)

Before the student left, the molecules were moving away from each other. After, the molecules were moving around each other.

58.

Divers found two substances on the bottom of the ocean. At room temperature, both substances are liquid. Scientists then transferred the same amount of energy out of both substances. When a scientist checked again, Substance 1 had changed phase, but Substance 2 had not. How are Substances 1 and 2 different?

a)

weaker attraction between its molecules than Substance 2. Its molecules now move in place.

b)

weaker attraction between its molecules than Substance 2. Its molecules now move around each other.

c)

stronger attraction between its molecules than Substance 2. Its molecules now move away from each other.

d)

stronger attraction between its molecules than Substance 2. Its molecules now move in place.

59.

Tom measured the temperature of a pond near his house. Before he left for school, the water in the pond was 15°C. When he came home from school, the temperature of the pond was higher than it was in the morning. What happened to the water molecules while he was at school?

a)

The molecules got closer together.

b)

The molecules started moving faster.

c)

The water lost cold molecules.

d)

The molecules became larger.

60.

A scientist had a container of two substances.  The image shows these substances.  At room temperature, both substances are liquids.  The same amount of energy was transferred INTO both substances.  After a few hours, one of the substances had changed phase, while the other did not.  Which substance would most likely change phases, and explain why?

a)

The substance #1 changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.

b)

The substance #1 changed because the strong attraction between molecules made their movement slower. Its molecules now move around each other.

c)

The substance #2 changed because the weak attraction between molecules let them move faster. Its molecules now move away from each other.

d)

The substance #2changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move in place.

61.

A scientist has two substances that she is testing in her lab: a pink substance and a green substance. At room temperature, both substances are liquids. The scientist transferred the same amount of energy into both substances. She finds only the pink substance changed phase. How is the pink substance different from the green substance?

The pink substance has a . .

a)

weaker attraction between its molecules than the green substance. Its molecules now move away from each other.

b)

weaker attraction between its molecules than the green substance. Its molecules now move in place.

c)

stronger attraction between its molecules than the green substance. Its molecules now move away from each other.

d)

stronger attraction between its molecules than the green substance. Its molecules move around each other.

62.

An Earth scientist brought an unknown substance from underground back to her lab. The substance was in the gas phase and was put into a sealed tank as shown above. She slowed down the molecules inside the tank and the substance changed phase. How did she do this, and how did it affect the molecules?

She transferred energy . . .

a)

into the substance, and the molecules moved around each other.

b)

into the substance, and the molecules moved away from each other.

c)

out of the substance, and the molecules moved around each other.

d)

out of the substance, and the molecules moved in place

63.

Detectives find two substances at a crime scene. One is a poison, and the other is a cleaning chemical. At room temperature, both substances are liquids. To test the substances, the detectives  transfer the same amount of energy into both substances, but only the cleaning chemical changes phase. How is the cleaning chemical different from the poison?

The cleaning chemical has a . .

a)

weaker attraction between its molecules than the poison. Its molecules now move in place.

b)

weaker attraction between its molecules than the poison. Its molecules now move away from each other.

c)

stronger attraction between its molecules than the poison. Its molecules now move away from each other.

d)

stronger attraction between its molecules than the poison. Its molecules now move around each other.

64.

Cesar and Ming were investigating a see-through container of water. Water can be a solid, liquid, or gas. At first, Cesar and Ming said the water molecules were moving in place. Later , the water molecules were moving around each other. What change did they observe to the water?

a)

At first, the water was a gas. Later, it was a liquid.

b)

At first, the water was a liquid. Later, it was a solid.

c)

At first, the water was a solid. Later, it was a liquid.

d)

At first, the water was a liquid. Later, it was a gas.

65.

A student left a jar of water outside his home. Water can be a solid, liquid, or gas. When he put the jar outside, the water was liquid. Twelve hours later, the water had changed phase and was a gas. What happened to the water molecules?

a)

When the student left the jar outside, the molecules were moving around each other. Later, the molecules were moving in place.

b)

When the student left the jar outside, the molecules were moving away from each other. Later, the molecules were moving around each other.

c)

When the student left the jar outside, the molecules were moving in place. Later, the molecules were moving around each other

d)

When the student left the jar outside, the molecules were moving around each other. Later, the molecules were moving away from each other.

66.

How is the kinetic energy of molecules changing when the molecules move faster?

The kinetic energy . . .

a)

is not changing.

b)

depends on the molecules.

c)

is decreasing.

d)

is increasing.

67.

17. Sammy's superball is made of synthetic rubber. When are the synthetic rubber in her superball moving?

The synthetic rubber molecules are . . .

a)

only moving when the superball is bouncing.

b)

only moving when the superball is in the toy box.

c)

always moving.

d)

never moving.

68.

Does the attraction in a substance change when it changes phases?

a)

Yes, attraction changes with phase change.

b)

No, a substances attraction will stay the same even if the phase changes.

69.

What is condensation of water?

a)

When ice melts to form water vapor

b)

When water vapor cools down to form liquid water

c)

When a solid turns directly to a gas without turning into liquid

70.

What are our 3 states of matter?

a)

Solid, Liquid and Gas

b)

Solid Gas and Plasma

c)

Plasma, Maryland and Virginia

71.

What is the definition and explanation of melting?

a)

When something that is a solid becomes a liquid by adding cold

b)

When something that is solid becomes a liquid by adding heat

c)

When something that is liquid becomes a gas by adding heat

72.

What is the definition of freezing?

a)

When the solid form of matter is cooled enough and changes to a gas

b)

When the liquid form of matter is cooled enough and changes to a solid

c)

When the soild form of matter changes directly to a gas

73.

What is the definition of SUBLIMATION?

a)

When solid rock melts to form lava

b)

When water vapor cools down to form liquid water

c)

The transition of a substance from a solid directly to a gas

74.

What can be seen once in a minute, twice in a moment, and never in a thousand years

a)

A thought

b)

The letter O

c)

The letter M

75.

Which is faster hot or cold?

a)

Cold because it lacks thermal energy

b)

Cold because of the theory of Newton's Laws of Motion

c)

Hot because you can always easily catch a cold

76.

The diagram above shows the repeating groups of atoms that make up two samples. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

a)

The properties will likely be different because the repeating groups of atoms that make up each sample are different.

b)

The properties will likely be different because there are more repeating groups of atoms in Sample 2.

c)

The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same number of atoms.

d)

The properties will likely be the same because the repeating groups of atoms that make up the two samples have two of the same types of atoms.

77.

Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed the results and found two ending substances. One of the ending substances was a white solid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Serena mixed together?

a)
b)
c)
d)
78.

Tiana is a chemist who is making a chemical to add to swimming pools in order to make the water safer. She mixed two solid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Tiana found two liquid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

a)
b)
c)
d)
79.

The diagram above shows the repeating groups of atoms that make up two samples. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

a)

The properties will likely be different because the repeating groups of atoms that make up each sample are different.

b)

The properties will likely be different because there are more repeating groups of atoms in Sample 1.

c)

The properties will likely be the same because the repeating groups of atoms that make up the two samples have one of the same types of atoms.

d)

The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same number of atoms.

80.
a)
b)
c)
d)
81.

Santiago is a chemist working to make a new kind of antacid, which is a medicine that helps with stomach pain. He mixed two powdery solid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Santiago found two liquid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

a)
b)
c)
d)
82.

The diagram above shows the repeating groups of atoms that make up two samples. Both samples are liquid at room temperature. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

a)

The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same types of atoms.

b)

The properties will likely be the same because both samples are liquids at room temperature.

c)

The properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.

d)

The properties will likely be different because there are more repeating groups of atoms in Sample 1.

83.

Marisol mixed two samples together: a brown liquid with no smell and a colorless gas that smells irritating. She analyzed the results and found two ending substances. One of the ending substances smelled sweet. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Marisol mixed together?

a)
b)
c)
d)
84.

Jamie works at a company that makes cleaning chemicals. She is trying to make a chemical that smells like flowers. She took two samples that were gases at room temperature and mixed them in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Jamie found two substances that smelled like flowers in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

a)
b)
c)
d)
85.

The diagram above shows the repeating groups of atoms that make up two samples. Both samples are green gases at room temperature. Will the other properties of the two samples be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

a)

The other properties will be the same because the repeating groups of atoms that make up the two samples are the same.

b)

The other properties will be different because there are more repeating groups of atoms in Sample 2.

c)

The other properties will be the same because both samples are green at room temperature.

d)

The other properties will be the same because both samples are gases at room temperature.

86.

A chemist mixed two samples together: a gray liquid that boils at 103°C and a colorless gas that boils at 19°C. She analyzed the results and found two ending substances. One of the ending substances was a pink liquid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?

a)
b)
c)
d)
87.

Patrik works at a company that makes paper and needs a chemical to make the paper brighter. He mixed two colorless substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Patrik found two white substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

a)
b)
c)
d)
88.

the tiny pieces that all matter—all the stuff in the world—is made of

a)
atoms
b)
planets
c)
cells
d)
molecules
89.

the temperature at which a substance changes from the liquid phase to the gas phase

a)
freezing point
b)
boiling point
c)
melting point
d)
condensation point
90.

letters and numbers showing the types and number of atoms that repeat to make up a substance

a)
numeric pattern
b)
alphabetical code
c)
chemical formula
d)
mathematical equation
91.

a process in which atoms rearrange to form new substances

a)
chemical reaction
b)
physical reaction
c)
biological reaction
d)
nuclear reaction
92.

able to cause damage

a)

corrosive

b)
innocuous
c)
helpful
d)
beneficial
93.

a structure formed by repeating groups of atoms linked together in a large network

a)

extended structure

b)
element
c)
monomer
d)
isotope
94.

a substance that is added to soil to help plants grow

a)
fungicide
b)
fertilizer
c)
herbicide
d)
pesticide
95.

the temperature at which a substance changes from the solid phase to the liquid phase

a)
Melting point
b)
Condensation point
c)
Freezing point
d)
Boiling point
96.

an object, diagram, or computer program that helps us understand something by making it simpler or easier to see

a)
model
b)
confusion
c)
complication
d)
painting
97.

a group of atoms joined together in a particular way

a)
molecule
b)
cell
c)
organism
d)
rock
98.

an ending substance that is made during a chemical reaction

a)
product
b)
reactant
c)
catalyst
d)
ingredient
99.

something that can be observed about a substance, such as color, smell, or boiling point

a)
physical property
b)
metaphysical property
c)
spiritual property
d)
emotional property
100.

a starting substance that is part of a chemical reaction

a)
catalyst
b)
product
c)
reactant
d)
inhibitor
101.

to change the order or position of something

a)
rearrange
b)
shuffle
c)
maintain
d)
disorder
102.

the relative size of things

a)
magnitude
b)
proportion
c)
dimension
d)
scale
103.

something that is made of all the same atoms or groups of atoms

a)
compound
b)
mixture
c)
solution
d)

substance

104.

Is there any visible bacterial growth in the petri dish on day 1?

a)

Yes

b)

No

105.

Is there any visible bacterial growth in the petri dish on day 3?

a)

Yes

b)

No

106.

Why do you think you can see the growth on day 3 but not on day 1?

a)

Microorganisms grew bigger in size on day three

b)

Microorganisms became visible after multiplying and growing in numbers

c)

The growth is visible so there are no microorganisms in the petri dish, it's something else

d)

Microorganisms can not be seen by th enaked eye

107.

This is the same petri dish on day 5, describe what you are seeing in the petri dish.

a)

Microorganisms are visible because they keeps multiplying and growing in numbers

b)

Some sort of growth but not microorganisms because they are visible

c)

They are geting bigger in size

108.

Do you think the microorganisms were present on the first day of plating? Why or why not?

4 lines
109.

Do you think the fungal growth (Mold) can make you sick on day 5?

4 lines
110.

Bacteria in the body outnumber the cells of the human body itself

a)

True

b)

False

111.

Which of the following is likely NOT found living on or in humans as part of a microbiome?

a)

bacteria

b)

fungi

c)

microscopic animals

d)

microscopic plants

112.

Which of the following have been linked to the human microbiome? Choose ALL that apply!

a)

diabetes

b)

obesity

c)

digestive issues

d)

ability to swim

113.

Antibacterial hand sanitizers wipe out which kinds of bacteria on your skin?

a)

Only bad!

b)

Only good!

c)

Both!

d)

They don't work, so no bacteria gets wiped out.

114.

The increase in antibiotic use in the US has ______ the diversity of our microbimes.

a)

reduced

b)

increased

c)

bolstered

d)

strengthened

115.
The microbes in a particular environment including the body or part of the body are called...
a)
Bacteria
b)
Viruses
c)
Microbiome
d)
Cooties
116.
Microorganisms introduced into the body for their beneficial qualities are called...
a)
Prebiotics
b)
Probiotics
c)
Antibiotics
d)
Vitamins
117.
Nondigestible food ingredients that promote the growth of beneficial microorganisms in the intestines are called...
a)
Prebiotics
b)
Probiotics
c)
Antibiotics
d)
Vitamins
118.

How do the microbes in the intestinal tract benefit us?

a)

produce vitamins

b)

Breaks down undigestable foods to release nutrients

c)

Control metabolism and nutrient storage

d)

All of the above

119.

Gut microbes teach the immune system to recognize and attack forign pathogens

a)

True

b)

False

120.

Broad spectrum antibiotics only target pathogenic bacteria

a)

True

b)

False

121.

What happens to the microbiome from birth to early adulthood

a)

It becomes less diverse

b)

It becomes more diverse

c)

There is no change

122.

How can people that need to take antibiotics keep their healthy bacteria healthy?

a)

Only take antibiotics when absolutely necessary

b)

Take antibiotics often

c)

Take a broad spectrum antibiotic

d)

Eat a lot of processed and fried foods

123.

Are bacteria good or bad?

a)

Good

b)

Bad

c)

Both

124.

The bacteria in my digestive system are extremely harmful and I should take meds to get rid of them.

a)

false

b)

true

125.

Examples of Probiotic foods

a)

Kimchi, some yogurts, saurerkrauts

b)

Hamburgers, hot dogs, and tacos

c)

fruit and vegetables

126.

The modern Western diet contributes to

a)

diabetes

b)

asthma

c)

autism

d)

strong immune system

127.

When we eat processed food it generates a whole lot of bad bacteria in our body that promotes

a)

homeostasis

b)

balanced microbiomes

c)

inflammation

d)

a harmonious ecosystem

128.

Dietary fiber is essential to balance the gut ecosystem because

a)

it generates high numbers of bad bacteria

b)

it is found in processed foods that we consume

c)

fiber is a fundamental food for gut microbiomes

d)

it helps to increase insulin levels

129.

Implanting live donor gut bacteria into another person's system to revert their flora into a healthy state is

a)

fecal transplantation

b)

colorectal surgery

c)

intestine transplant

d)

colostomy

130.

An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct?

a)

A Yes, her cells only work when they have molecules from different types of food.

b)

B No, her muscles do not need molecules from food because all cells make all the molecules they need.

c)

C No, all cells need molecules from food and molecules from air to work properly.

d)

D No, only her stomach cells need food molecules to work properly.

131.

Marisol has been chewing and swallowing her food, but her digestive system is not doing what it usually does. Why is this a problem for her ability to exercise?

a)

A Her cells will not work well because molecules from her food are not being broken down small enough to get to her cells.

b)

B Her body will run out of energy because molecules from the air are not being combined into larger molecules for the cells.

c)

C Her respiratory system will have to work twice as hard to break down molecules from food.

d)

D Her cells will not work well because the molecules from food will be too small for cells to use.

132.

Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of amino acids, normal levels of oxygen molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?

a)

A Yes, her cells just need to combine amino acids to release energy.

b)

B No, her cells need to combine glucose into starch molecules to release energy.

c)

C No, her cells need glucose to react with oxygen to release energy.

d)

D Yes, her cells just need oxygen to release energy.

133.

An ocean scientist plans to spend several days underwater in a submarine. Doctors on land will monitor her body to make sure she is healthy during her trip. What is one way doctors will be able to tell whether her body is healthy enough to do all her tasks while she is in the submarine?

a)

A The doctors could see if her cells are getting several different types of food molecules.

b)

B The doctors could see if she is getting plenty of sleep so her body can make enough energy.

c)

C The doctors could see if her lung cells have molecules from air, and her stomach cells have molecules from food.

d)

D The doctors could see if her cells are getting the molecules they need from food and air.

134.

The tables below show information about the body systems of three different patients. Which of these patients’ bodies are NOT working well enough to exercise normally?

a)

A R. Frost only

b)

B V. Mistry only

c)

C R. Frost and A. Kim

d)

D A. Kim and V. Mistry

135.

A patient has been eating healthy foods, but his digestive system is not doing what it usually does. Can this patient still exercise normally?

a)

A Yes, as long as he can still breathe, his cells will have all the molecules they need to release energy.

b)

B No, his digestive system is not breaking down oxygen into molecules small enough to get inside his cells.

c)

C No, molecules from food are not combining together to be large enough for his cells to use.

d)

D No, molecules from food are not getting broken down small enough to get inside his cells.

136.

If a person is breathing normally, which of the following could prevent him from using his body to exercise normally?

a)

A Not getting enough sunlight, because cells need sunlight to function

b)

B Not getting enough sleep, because the body only makes energy for exercise while asleep

c)

C Not eating enough food, because cells need molecules from both food and air to work

d)

D Nothing, because he would be able to exercise normally as long as his cells are getting molecules from the air

137.

Raoul ate a meal of oats before seeing his doctor. Oats are made of mostly starch molecules. Raoul feels tired, so his doctor gave him a test and found that Raoul’s cells contained glucose molecules, but they did not contain enough oxygen molecules. Does this explain why Raoul feels tired?

a)

A No, something else must be wrong because his cells have all the molecules they need.

b)

B Yes, his digestive system is breaking down starch molecules, but his respiratory system may not be working properly.

c)

C Yes, his respiratory system is working, but his digestive system is not getting energy from combining glucose molecules.

d)

D Yes, his digestive system is working, but his respiratory system is not breaking down oxygen, so his body stopped making energy.

138.

Doctors tested a patient to find out what molecules were in his cells. His cells contained normal levels of glucose molecules and amino acid molecules, and low levels of oxygen molecules. Will this patient be able to exercise normally?

a)

A Yes, his body is working properly enough to exercise.

b)

B No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

c)

C No, his body systems are working, but he needs to eat different food; only proteins can react with glucose to release energy.

d)

D No, his respiratory system is not working; his cells need oxygen to react with glucose, which releases energy.

139.

Rico, a scuba diver, uses breathing gear to help him breathe air underwater. He always gets enough sleep and eats a good breakfast before a dive. What could happen if his breathing gear broke during a dive and he could not breathe as much air as usual?

a)

A It would be difficult to swim, because his cells cannot work without molecules from air.

b)

B It would not affect him because his cells are getting the different types of molecules they need from food to work properly.

c)

C It would not affect him as long as he slept enough.

d)

D It would not affect him because his body can function normally even if his cells do not have molecules from air.

140.

The test report shows the level of molecules in different parts of the patient's body. What does this test indicate about how her body systems are working?

a)

A Her body systems are working properly.

b)

B Her digestive system is not combining molecules together.

c)

C Her digestive system is not breaking down molecules from food.

141.

Two teams of scientists hiked 10 kilometers to different study sites. Before their hike, the Valley team ate a lunch of mostly protein. The Mountain team ate a lunch of a mix of starch and protein, but hiked at high altitude, where there is much less oxygen. Which team probably had an easier time hiking?

a)

A Both teams had an easy time hiking because their digestive systems broke down proteins into amino acids for cells to release energy.

b)

B Neither team had an easy time hiking; the Valley team’s cells needed more glucose from broken-down starch for a reaction, and the Mountain team’s cells needed more oxygen from air.

c)

C The Mountain team had an easier time hiking; their cells released energy from protein reacting with glucose, which was broken down from starch in the digestive system.

d)

D The Valley team had an easier time hiking; their cells released energy from protein breaking down in the digestive system, which then combined with oxygen in cells.

142.

An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct?

a)

A Yes, her cells only work when they have molecules from different types of food.

b)

B No, her muscles do not need molecules from food because all cells make all the molecules they need.

c)

C No, all cells need molecules from food and molecules from air to work properly.

d)

D No, only her stomach cells need food molecules to work properly.

143.

Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of amino acids, normal levels of oxygen molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?

a)

A Yes, her cells just need to combine amino acids to release energy.

b)

B No, her cells need to combine glucose into starch molecules to release energy.

c)

C No, her cells need glucose to react with oxygen to release energy.

d)

D Yes, her cells just need oxygen to release energy.

144.

Raoul ate a meal of oats before seeing his doctor. Oats are made of mostly starch molecules. Raoul feels tired, so his doctor gave him a test and found that Raoul’s cells contained glucose molecules, but they did not contain enough oxygen molecules. Does this explain why Raoul feels tired?

a)

A No, something else must be wrong because his cells have all the molecules they need.

b)

B Yes, his digestive system is breaking down starch molecules, but his respiratory system may not be working properly.

c)

C Yes, his respiratory system is working, but his digestive system is not getting energy from combining glucose molecules.

d)

D Yes, his digestive system is working, but his respiratory system is not breaking down oxygen, so his body stopped making energy.

145.

Doctors tested a patient to find out what molecules were in his cells. His cells contained normal levels of glucose molecules and amino acid molecules, and low levels of oxygen molecules. Will this patient be able to exercise normally?

a)

A Yes, his body is working properly enough to exercise.

b)

B No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

c)

C No, his body systems are working, but he needs to eat different food; only proteins can react with glucose to release energy.

d)

D No, his respiratory system is not working; his cells need oxygen to react with glucose, which releases energy.

146.

Marisol has been chewing and swallowing her food, but her digestive system is not doing what it usually does. Why is this a problem for her ability to exercise?

a)

A Her cells will not work well because molecules from her food are not being broken down small enough to get to her cells.

b)

B Her body will run out of energy because molecules from the air are not being combined into larger molecules for the cells.

c)

C Her respiratory system will have to work twice as hard to break down molecules from food.

d)

D Her cells will not work well because the molecules from food will be too small for cells to use.

147.

Rico, a scuba diver, uses breathing gear to help him breathe air underwater. He always gets enough sleep and eats a good breakfast before a dive. What could happen if his breathing gear broke during a dive and he could not breathe as much air as usual?

a)

A It would be difficult to swim, because his cells cannot work without molecules from air.

b)

B It would not affect him because his cells are getting the different types of molecules they need from food to work properly.

c)

C It would not affect him as long as he slept enough.

d)

D It would not affect him because his body can function normally even if his cells do not have molecules from air.

148.

Raoul ate a meal of oats before seeing his doctor. Oats are made of mostly starch molecules. Raoul feels tired, so his doctor gave him a test and found that Raoul’s cells contained glucose molecules, but they did not contain enough oxygen molecules. Does this explain why Raoul feels tired?

a)

A No, something else must be wrong because his cells have all the molecules they need.

b)

B Yes, his digestive system is breaking down starch molecules, but his respiratory system may not be working properly.

c)

C Yes, his respiratory system is working, but his digestive system is not getting energy from combining glucose molecules.

d)

D Yes, his digestive system is working, but his respiratory system is not breaking down oxygen, so his body stopped making energy.

149.

Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of amino acids, normal levels of oxygen molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?

a)

A Yes, her cells just need to combine amino acids to release energy.

b)

B No, her cells need to combine glucose into starch molecules to release energy.

c)

C No, her cells need glucose to react with oxygen to release energy.

d)

D Yes, her cells just need oxygen to release energy.

150.

Select all that are made up of molecules.

a)

sandwiches

b)

atoms

c)

people

d)

chair

151.

Where do we get glucose molecules from?

a)

Sugars/Starches

b)

Protein

c)

Air

d)

Water

152.

Select all that contain protein.

a)

meat

b)

eggs

c)

beans

d)

candy

153.

Where is the best place to take in oxygen molecules?

a)

Mountains

b)

Beach

c)

Forest

d)

Pool

154.

Amino Acids are....

a)

molecules that are the building blocks of proteins

b)

a molecule made of carbon and oxygen atoms

c)

a molecule that organisms can use to release energy,

d)

a molecule that organisms get from the air or water around them

155.

What is the chemical reaction between oxygen and glucose that releases energy into cells?

a)

Cellular respiration

b)

Glucose

c)

Metabolism

d)

Amino acid

156.

What is the body system that takes in food and breaks it down?

a)

Digestive System

b)

Circulatory System

c)

Respiratory System

d)

Molecule

157.

What is a proposed answer to a question about the natural world?

a)

Claim

b)

Evidence

c)

Reasoning

d)

Organism

158.

What is a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms?

a)

Glucose

b)

Oxygen

c)

Amino acid

d)

Metabolism

159.

The circulatory system is ......

a)

the body system that transports molecules to and from all cells of the body

b)

the body system that takes in food and breaks it down

c)

the body system that takes in oxygen and releases carbon dioxide

d)

the body system that is responsible for immunity

160.

What is energy?

a)

the ability to make things move or change

b)

found in a can of Monster energy drink

c)

a group of atoms joined together in a particular way

d)

a set of interacting parts forming a complex whole

161.

What is oxygen?

a)

a molecule that organisms get from the air or water around them and use to release energy

b)

a molecule that organisms can use to release energy, and that is made of carbon, hydrogen,

c)

a molecule made of carbon and oxygen atoms

d)

molecules that are the building blocks of proteins

162.

The process in which atoms rearrange to form new substances

a)

chemical reaction

b)

chemical equation

c)

cellular respiration

d)

digestive system

163.

A molecule made of one atom of carbon and 2 atoms of oxygen

a)

Carbon dioxide

b)

Carbon Trioxide

c)

Carbon Monoxide

d)

Carbonic Acid

164.

Metabolism is......

a)

the body’s use of molecules for energy and growth

b)

the ability to make things move or change

c)

a molecule made of carbon and oxygen atoms

d)

a claim supported by evidence

165.

respiratory system

a)

the body system that takes in oxygen and releases carbon dioxide

b)

the body system that takes in food and breaks it down

c)

the body system that transports molecules to and from all cells of the body

d)

the body system that takes carbon dioxide to all the cells of the body

166.

the process of making clear how your evidence supports your claim

a)

evidence

b)

reasoning

c)

claim

167.

information about the natural world that is used to support or go against (refute) a claim

a)

claim

b)

evidence

c)

scientific reasoning

168.

a group of atoms joined together in a particular way

a)

chemical

b)

molecules

c)

elements

d)

protons

169.

a category of large molecules that perform important functions inside living things

a)

carbon dioxide

b)

protein

c)

water

d)

beans

170.

molecules that are the building blocks of proteins

a)

amino acids

b)

glucose

c)

oxygen

d)

carbon dioxide

171.

What is a set of interacting parts forming a complex whole?

a)

Molecule

b)

System

c)

Metabolism

d)

Digestive System

172.

A type of energy storage molecule made of many glucose molecules connected together

a)

starch

b)

glucose

c)

amino acid

d)

oxygen

173.
True or False: Long hair MUST be tied back during a laboratory investigation.
a)
True
b)
False
174.
True or False: The wearing of flip flops and other open toed shoes are acceptable during a laboratory investigation during the hot summer months.
a)
True
b)
False
175.
If you spill or break something during an experiment, what is the FIRST thing you should do?
a)
Tell the teacher.
b)
Clean it up. 
c)
Cover it with a paper towel.
d)
Leave it for someone else.
176.
The lab equipment seen in the image should be worn during a lab investigation when...
a)
using glassware.
b)
using chemicals.
c)
using heat/fire.
d)
using any of the above.
177.
True or False: If you see something dangerous taking place during a lab,you should immediately tell the teacher.
a)
True
b)
False
178.

What do you do if a fire breaks out during a lab?

a)

Run!

b)

Tell the teacher

c)

Just watch it burn

179.

after completing an experiment, all chemical waste should be

a)

left at your lab station for the next class

b)

disposed of according to your teacher's instructions

c)

dumped in the sink

d)

taken home

180.

You just cut your finger on a piece of broken glass, what should you do?

a)

go see a doctor after school

b)

tell the teacher!

c)

go see the nurse

d)

take care of it by youself

181.

(True or False) It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can

a)

true

b)

false

182.

Laboratory work may be started immediately upon entering the laboratory even if the teacher is not yet present

a)

false

b)

true

183.

When it comes to glassware...

a)

don't use it if it's chipped/cracked

b)

don't pick it up if it breaks (let the teacher do it)

c)

dispose of it in the correct container

d)

all of the above

184.

Never work without...

a)

good music

b)

a buddy

c)

adult supervision

d)

a snack

185.

During lab, what do you do first?

a)

read all directions

b)

wash your hands

c)

gather your materials

d)

get the fire extinguisher

186.

When preparing for lab, you should...

a)

tie back long hair

b)

not wear baggy clothes

c)

wear closed-toe shoes

d)

watch the Marvel movies so you know what superpowers to expect if you mess anything up

187.

Never leave ___ unattended.

a)

a dissected pig

b)

a test tube

c)

an active heat source

d)

a freshman

188.

When instructions are being given you should....

a)

listen

b)

inspect your eyelids for holes

c)

ponder one of life's mysteries

d)

practice yoga

189.

Items containing liquid should be placed

a)

at the edge of the table

b)

away from the edge

c)

at the edge of tomorrow

d)

at the edge of darkness

190.
Before leaving the lab you should always wash or sanitize your hands.
a)
True 
b)
False
191.
What should you do before you start lab?
a)
Read all the procedures
b)
Make sure your work area is neat
c)
Get teachers permission
d)
All of the above
192.
Which of the following would be safe to do during a lab activity?
a)
Running in the classroom
b)
Leaving a water spill on the floor
c)
Touching hot surfaces
d)
Following lab rules
193.

What is the 1st of the scientific method?

a)

observation

b)

question

c)

method

d)

hypothesis

194.

What is the 2nd step of the scientific method?

a)

method

b)

hypothesis

c)

question

d)

observation

195.

What is the 3rd step of the scientific method?

a)

method

b)

result

c)

observation

d)

hypothesis

196.

What is the 4th step of the scientific method?

a)

hypothesis

b)

method

c)

result

d)

observation

197.

What is the 5th step of the scientific method?

a)

result

b)

method

c)

conclusion

d)

question

198.

What is the 6th step of the scientific method?

a)

observation

b)

result

c)

conclusion

d)

hypothesis

199.
  1. give step by step instructions to conduct the experiment 

a)

hypothesis

b)

result

c)

method

d)

conclusion

200.
  1. ask questions about what you observed 

a)

observation

b)

question

c)

method

d)

hypothesis

201.
  1. record data in a table or graph

a)

result

b)

conclusion

c)

method

d)

hypothesis

202.
  1. form an educated guess to your questions 

a)

conclusion

b)

observation

c)

hypothesis

d)

method

203.
  1. summarize your experiment and state whether your hypothesis was correct or incorrect 

a)

observation

b)

result

c)

method

d)

conclusion

204.
  1. study something using your five senses 

a)

hypothesis

b)

observation

c)

method

d)

question