Changes in Matter

Front

All matter is made up of smaller pieces called ______.

Back

particles

Front

A ____ is a material where each part of it is made of the same type of particle.

Back

substance

Front

Which of the following is a property that you can see?

Back

color, hardness, brittleness, all of these

Front

What can happen to particles during a reaction?

Back

The particles can rearrange.

Front

When a substance evaporates, the particles in the substance ______.

Back

move faster and the substance changes into a gas

Front

What is a mixture?

Back

A combination of two or more substances where each keeps its own properties.

Front

What happens to the particles in a solid when it melts?

Back

The particles move faster and begin to slide past each other.

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not change the substance's identity, while a chemical change does.

Front

What is an example of a chemical change?

Back

Burning wood.