Phase Changes

Front

What is a phase change?

Back

A phase change is the transformation of a substance from one state of matter to another, such as solid to liquid or liquid to gas.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas.

Front

What happens to the energy during a phase change?

Back

Energy is either added or removed during a phase change.

Front

What is the state of matter where particles are tightly packed and vibrate in place?

Back

Solid.

Front

In which state of matter do particles have more energy and can slide past each other?

Back

Liquid.

Front

What occurs to particles in a gas?

Back

Particles move freely and are far apart from each other.

Front

What is melting?

Back

Melting is the phase change from solid to liquid.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas.

Front

What is condensation?

Back

Condensation is the phase change from gas to liquid.