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Matter and State Changes

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Questions and Answers

What happens when a substance evaporates?

It changes from a liquid to a gas. (correct)

It remains in the same state.

It changes from a gas to a liquid.

It becomes a solid.

What is the process called when a substance changes from a gas to a liquid?

Sublimation

Condensation (correct)

Deposition

Evaporation

What happens to the atoms or molecules when thermal energy is added to a liquid?

They move slower and become more dense.

They disappear.

They remain in the same state.

They move faster and farther apart. (correct)

What is sublimation?

The process of a solid changing directly to a gas. Signup and view all the answers

What is deposition?

The process of a gas changing directly to a solid. Signup and view all the answers

What happens to the atoms or molecules when thermal energy is removed from a gas?

They move slower and become more dense. Signup and view all the answers

At what temperature does water freeze?

32°F or 0°C Signup and view all the answers

What is the boiling point of water?

212°F or 100°C Signup and view all the answers

What is an example of sublimation?

Dry ice turning directly into carbon dioxide gas. Signup and view all the answers

What is an example of deposition?

Frost forming on a cold surface. Signup and view all the answers