Phase Change Exam

Front

What is condensation?

Back

The phase change from gas to liquid.

Front

What state of matter is a gas?

Back

A state where molecules are far apart and move freely.

Front

How does energy transfer affect phase changes?

Back

Transferring energy into a substance can cause it to change from solid to liquid or liquid to gas.

Front

What happens to molecules when a substance cools down?

Back

The molecules start moving slower.

Front

What is melting?

Back

The phase change from solid to liquid.

Front

What is freezing?

Back

The phase change from liquid to solid.

Front

What is evaporation?

Back

The phase change from liquid to gas.

Front

What is sublimation?

Back

The phase change from solid to gas without becoming liquid.

Front

What is the boiling point?

Back

The temperature at which a liquid turns into a gas.

Front

What is the freezing point?

Back

The temperature at which a liquid turns into a solid.