Front

What is it called when a solid turns directly into a gas?

Back

Sublimation

Front

Matter is anything that...

Back

Takes up space AND has mass.

Front

What happens during the freezing process?

Back

A substance changes from a liquid to a solid.

Front

What is required for all changes in the state of matter?

Back

Energy

Front

What is the boiling point of a substance?

Back

The temperature at which it changes from a liquid to a gas.

Front

What is condensation?

Back

The process where a gas turns into a liquid.

Front

What is melting?

Back

The process where a solid turns into a liquid.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at the surface of a liquid at any temperature, while boiling occurs throughout the liquid at a specific temperature.

Front

What is a cooling curve?

Back

A graph that shows the temperature change of a substance as it cools and changes state.

Front

What is a heating curve?

Back

A graph that shows the temperature change of a substance as it is heated and changes state.