Phase Change Chapter 1

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to changes in temperature or pressure.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

Which phase can the molecules flow around each other and take the shape of a container?

Back

Liquid.

Front

What happens to molecules during melting?

Back

During melting, molecules gain energy and move more freely, transitioning from a solid to a liquid.

Front

What is the opposite of melting?

Back

Freezing.

Front

What is condensation?

Back

Condensation is the phase change from gas to liquid.

Front

Which phase change increases the molecule's freedom of movement?

Back

Melting.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid.

Front

Which state of matter has molecules that slide past each other but stay close together?

Back

Liquid.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas.