| __ | 1. | crystals | | A. | a collection of Earth materials pressed together |
| __ | 2. | diameter | | B. | a single type of earth material |
| __ | 3. | dissolve | | C. | when water moves from a liquid to a gas. |
| __ | 4. | evaporate | | D. | the study of the earth |
| __ | 5. | geologist | | E. | a scientist who studies the earth |
| __ | 6. | geology | | F. | the distance from one side to another (through the middle) |
| __ | 7. | mineral | | G. | something you notice |
| __ | 8. | observation | | H. | when a material mixes with water and becomes invisible |
| __ | 9. | property | | I. | a way to describe something |
| __ | 10. | rock | | J. | minerals that dissolve out of water (they form patterns) |