| A | B |
|---|
| Physical change | change in appearance, but not subtance |
| Chemical change | changing to a new substance |
| shape | physical property |
| Size | Physical property |
| color | Physical property |
| mass | physical property |
| Chemical property | characteristics that can only be observed when one substance changes into a different substance |
| Atom | smallest whole part of an enlement |
| Nucleus | Center of an atom |
| Electron | Negatively charged particle |
| Proton | Positively charged particle |
| Neutron | A particle with no charge |
| texture | physical property |
| brittleness | physical property |
| reactivity | chemical property |
| state (solid, liquid, gas) | physical property |
| melting | physical change |
| water vapor turning into liquid water | physical change |
| Hydrogen gas and oxygen gas reacting to produce water | chemical change |
| paper burning | chemical change |
