| A | B |
|---|
| matter | something that has mass and volume |
| solid | a substance in which the particles inside are tightly bound together, giving it shape |
| liquid | a substance in which the particles inside are packed together less tightly than in a solid |
| gas | a substance in which the particles inside are packed together very loosely |
| property | a characteristic describing how a material behaves |
| compressible | when a substance is put under pressure, its volume decreases |
| incompressible | when a substance is put under pressure, its volume does not change |
| flow | the movement of a liquid (or gas) as its particles move over each other |
| particle model / particle theory | the theory that describes the particles that make up matter and how they behave |
| states of matter | the main conditions under which matter exists; solids, liquids and gases |
