| A | B |
|---|
| compounds | two or more elements combined chemically |
| 1 sign of chemical change | a new gas is produced |
| 2 sign of chemical change | heat or light is given off |
| 3 sign of chemical change | a new solid is produced |
| 4 sign of chemical change | there is a color change |
| 1 sign of physical change | change in size |
| 2 sign of physical change | change in shape |
| 3 sign of physical change | change is state of matter |
| chemical formula | names a chemical compound |
| 4 sign of physical change | change in appearance |
