Phase Changes in Matter

Front

What state of matter has particles with the most energy?

Back

Gas

Front

True or false: melting and freezing occur at the same temperature.

Back

True

Front

What is condensation?

Back

The process of gas changing to liquid.

Front

What state(s) of matter are present during a phase change from liquid to gas?

Back

Liquid-gas

Front

What is a physical change?

Back

A change that doesn't change the identity of a substance.

Front

What is the process of a solid turning into a liquid called?

Back

Melting

Front

What is the process of a liquid turning into a solid called?

Back

Freezing

Front

What happens to the energy of particles during condensation?

Back

Energy decreases as gas turns into liquid.

Front

What is evaporation?

Back

The process of a liquid turning into a gas.

Front

What is sublimation?

Back

The process of a solid turning directly into a gas.