| A | B |
|---|
| Mixture | Any matter that contains more than one substance and that can be separated by a physical change. |
| Solution | A mixture formed when one substance mixes evenly with another substance. |
| Solute | The part of the solution that is dissolved. |
| Solvent | The part of the solution that does the dissolving. |
| Compound | A substance that can only be broken down into simpler parts by a chemical change. |
| Atomic Mass | The average mass of an element as it is found in nature. |
| Isotope | Atoms of teh same element that have different masses. |
| Mass Number | Number of protons and neutrons in the nucleus of an atom. |
