Matter Unit Review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance but does not change its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What happens to particles in a solid?

Back

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

Front

What happens to particles in a liquid?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to flow.

Front

What happens to particles in a gas?

Back

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

Front

What is freezing?

Back

Freezing is the process of a liquid turning into a solid when its temperature is lowered.

Front

What is melting?

Back

Melting is the process of a solid turning into a liquid when its temperature is raised.

Front

What is boiling?

Back

Boiling is the process of a liquid turning into a gas when it reaches its boiling point.