| A | B |
| Mixture | Combinations of atoms that can be physically separated. |
| Pure substance | Substances that are made of only one type of atom or molecule |
| Gas | Type of matter in which molecules are very far apart and move the fastest |
| Liquid | Type of matter in which molecules move freely; Can flow and be poured |
| Solid | Type of matter in which molecules are very close together |
| Matter | Anything that has weight and/or takes up space (Liquid, solid, gas) |
| Cell wall | Provides structure and support to plant cells |
| Cell membrane | Circles the outside of all cells; Allows things to enter and leave |
| Mitochondria | Powerhouse of the cell; Uses energy to make ATP |
| Chloroplast | Takes the light energy and makes into chemical energy (glucose) |