The particle theory of matter

Question 1

What is matter?

Answer 1

Anything that has mass and volume.

Question 2

What is mass?

Answer 2

A measure of how much matter there is in a substance.

Question 3

What is volume?

Answer 3

A measure of how much space a substance takes up.

Question 4

What is the particle theory of matter?

Answer 4

1. All matter is made up of tiny particles
2. All particles are in constant motion
3. All particles of one substance are identical
4. Temperature affects the speed at which particles move
5. In liquids and solids, the particles are close together and have strong forces of attraction between them
6. In a gas, there are spaces between the particles