Phase Changes 2 701

Front

What is the temperature at which a liquid evaporates to a gas?

Back

Boiling point.

Front

What is the transition from a solid to a liquid called?

Back

Melting.

Front

What is the temperature at which a solid melts to a liquid?

Back

Melting point.

Front

What is the change of a solid directly into a gas called?

Back

Sublimation.

Front

What happens to the molecules of a substance when it changes from solid to liquid?

Back

The molecules gain energy and move more freely.

Front

What is condensation?

Back

The process where a gas turns into a liquid.

Front

What is freezing?

Back

The process where a liquid turns into a solid.

Front

What is the freezing point?

Back

The temperature at which a liquid becomes a solid.

Front

What is deposition?

Back

The process where a gas turns directly into a solid.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at any temperature, while boiling occurs at a specific temperature.