Across
- 4. the water that can be seen on the surface of the earth
- 6. the change of a gas into a liquid
- 8. the change of a liquid into a gas
- 9. to mix with another substance, forming a solution
- 10. a substance capable of dissolving another substance
- 11. the water within the earth
- 12. the amount of salt that is dissolved in water
Down
- 1. all the water contained on Earth
- 2. an area of land from which water drains into a water system
- 3. the constant movement of water between the earth and its atmosphere
- 5. a form of water that falls from the atmosphere to the earth
- 7. the evaporation of excess water from a plant