| A | B |
|---|
| matter | any substance that has mass & takes up space |
| solid | the state of matter with a definite shape & volume |
| liquid | the state of matter with a definite volume, that takes on the shape of its container |
| gas | the state of matter with no definite volume or shape, that expands or contracts |
| properties | attributes that can be used to describe matter such as physical appearance and chemical composition |
| physical change | a change in the way a substance looks, but it remains the same substance |
| chemical change | a substance changes into a completely different substance, with different properties |
| melting point | the temperature at which a solid changes to a liquid |
| boiling point | the temperature at which a solid changes to a gas |
| density | the amount of mass something has per unit of volume (how many molecules are packed into an amount of a substance). |
| states | forms of a substance. The three states of matter are solid, liquid & gas. |
| volume | with matter, the amount of space a substance takes up |
