| A | B |
|---|
| atom | the smallest possible particle of a substance |
| element | a substance that is made up of just one kind of atom |
| change of state | occurs when a substance changes from one state to another |
| physical change | a change that does not result in a new substance |
| physical property | traits that involve a substance by itself |
| chemical property | properties that involve how a substance interacts with other substances |
| chemical change | a change that results in one or more new substances |
| chemical reaction | another name for a chemical change |
| compound | made up of two or e more different elements that have chemically combined |
| matter | anything that has mass and takes up space |
