States of Matter

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume. The particles are closely packed together and vibrate in place.

Front

What is a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container. The particles are close together but can move past each other.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume. The particles are far apart and move freely.

Front

What happens to a liquid when it freezes?

Back

When a liquid freezes, it becomes a solid. The particles lose energy and move closer together.

Front

What is condensation?

Back

Condensation is the process where water vapor cools and changes into liquid water.

Front

What is evaporation?

Back

Evaporation is the process where liquid water changes into water vapor (gas) when it is heated.

Front

What is melting?

Back

Melting is the process where a solid changes into a liquid when it is heated.

Front

What is freezing?

Back

Freezing is the process where a liquid changes into a solid when it is cooled.

Front

What is the energy level in solids?

Back

The energy level in solids is low. The particles vibrate but do not move freely.

Front

What is the energy level in liquids?

Back

The energy level in liquids is medium. The particles can move around each other.