| A | B |
|---|
| Pure Substance | every sample has same properties |
| element | contains only one type of atom |
| compound | fixed composition of more than one type of atom |
| mixture | properties vary because composition is not fixed |
| heterogeneous mixture | parts are noticebale different from one another |
| homogeneous mixture | substances are evenly distributed |
| solution | do not separate over time, very small particles |
| suspension | very large particles, will settle over time |
| colloid | intermediate sized particles, will not settle but does not allow light to pass through |
