Front

What is melting?

Back

The process of changing from a solid to a liquid.

Front

What happens to particles in a gas?

Back

They move very fast.

Front

Which state of matter has particles that are constantly moving but not as fast as in gases?

Back

Liquid.

Front

How many common states of matter are there on Earth?

Back

Three: solid, liquid, and gas.

Front

What is the freezing point?

Back

The temperature at which a liquid changes to a solid.

Front

What is boiling?

Back

The process of changing from a liquid to a gas.

Front

What is condensation?

Back

The process of changing from a gas to a liquid.

Front

What is sublimation?

Back

The process of changing from a solid directly to a gas.

Front

What is the term for the temperature at which a solid changes to a liquid?

Back

Melting point.

Front

What is plasma?

Back

A state of matter where gas is energized until atomic particles break free.