| A | B |
|---|
| substance | anything that contains only one kind of material |
| heterogeniouse mixture | a mixture in which the difference substances are distributed unevenly |
| mixture | any material made of two or more s |
| homogeniouse mixture | a mixture in which the substances are distributed evenly |
| element | a substance that cannot be broken down any further |
| compound | a substance whos smallest unit is made up of more than one element |
| chemical change | materials that do not keep there identity after a chemical change |
| chemical property | any characteristic of a substance that allows it to undergo a chemical change |
| density | measure o an objects or materials mass caompared to its volume |
| physical change | substances keep there identity after a physical change |
| physical property | characteristics that can be used to identify materials |
