Amplify Phase Change Unit Review

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

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

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

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

• into the substance, and its molecules would move in place.

Tags

NGSS.MS-PS1-4

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?

• slower, and they move away from each other.

• slower, and they move around each other.

• faster, and they move around each other.

• faster, and they move in place.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Scientists have a container of water. Water can be a solid, liquid, or gas. At first, the water molecules in the container were moving around each other. Later, the water molecules were moving in place. What change did the scientists observe?

• At first, the water was a gas. After, it was a liquid.

• At first, the water was a solid. After, it was a liquid.

• At first, the water was a liquid. After, it was a gas.

• At first, the water was a liquid. After, it was a solid.

Tags

NGSS.MS-PS1-4

the change of a substance from a gas to a liquid

• condensation

• atom

• evaporation

• freedom of movement

• freezing

Tags

NGSS.MS-PS1-4

the change of a substance from a liquid to a gas

• evaporation

• atom

• condensation

• freedom of movement

• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

the change of a substance from a liquid to a solid

• freezing

• atom

• condensation

• evaporation

• freedom of movement

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

a noticeably different form or state of the same substance

• phase

• atom

• condensation

• evaporation

• freedom of movement

Tags

NGSS.MS-PS1-4

What is the process called when a solid changes directly into a gas without passing through the liquid phase?

• Sublimation

• Condensation

• Evaporation

• Freezing

Tags

NGSS.MS-PS1-4

Which of the following best describes the energy change when a liquid turns into a gas?

• Energy is absorbed, and molecules move faster.

• Energy is released, and molecules move slower.

• Energy is absorbed, and molecules move slower.

• Energy is released, and molecules move faster.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In an experiment, a scientist observes that a substance changes from a liquid to a solid. What is this phase change called?

• Freezing

• Melting

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4