Front

What are the three main states of matter?

Back

Solid, Liquid, Gas.

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume.

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.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume and expands to fill its container.

Front

What happens to the particles in a solid?

Back

The particles in a solid are closely packed together and vibrate in place.

Front

What happens to the particles in a liquid?

Back

The particles in a liquid are close together but can move past each other, allowing liquids to flow.

Front

What happens to the particles in a gas?

Back

The particles in a gas are far apart and move freely, filling the space available.

Front

What is melting?

Back

Melting is the process of a solid turning into a liquid when it is heated.

Front

What is freezing?

Back

Freezing is the process of a liquid turning into a solid when it is cooled.

Front

What is evaporation?

Back

Evaporation is the process of a liquid turning into a gas when it is heated.