| A | B |
| Element | Made up of only 1 type of atom |
| Compound | Made of two or more elements combined chemically always in the same ratio |
| Matter | Anything that takes up space & has mass |
| Pure Substance | An element or compound |
| Mixture | Made up of two or more substances that are physically combined and not always in the same ratio |
| Homogeneous mixture | Very small particles, evenly spread, stays suspended |
| Solution | Another name for a homogeneous mixture |
| Heterogeneous mixture | Large particles, unevenly mixed, sometime settles & sometimes doesn't settle |
| Colloid | Heterogeneous mixture that doesn't settle |
| Suspension | Heterogeneous mixture that does settle (shake well) |
| Tyndall Effect | The scattering of light in a colloid |
| Physical property | Size, shape, color, state of matter |
| Physical change | Any change in size, shape, color, state of matter |
| Chemical property | An indication that a substance can undergo a chemical change |
| Chemical change | A change from one substance into completely different substances |
| Indicators of a chemical change | Heat,flame,sound,smell,production of a gas,color change if strange |