| A | B |
|---|
| melting | occurs when a solid turns into a liquid |
| evaporation | occurs when a liquid turns into a gas |
| condensation | occurs when a gas turns into a liquid |
| freezing | occurs when a liquid turns into a solid |
| sublimation | occurs when a solid changes directly from a solid to a gas |
| solid | the molecules in this state are very close together |
| gas | the molecules in this state are very far apart |
| liquid | the molecules in this state are not too far apart or too close together |
| matter | anything that takes up space and has mass |
| property | something that you can observe and describe with your senses |
| pressure | when air expands and pushes on something |
| mass | the amount of matter an object has |
| volume | the amount of space an object takes up |
| buoyancy | this depends on how dense an object is |
