Across
- 4. water as a gas in the air
- 5. first country to use chlorine to kill germs in the water
- 8. liquid water becoming a gas
- 11. water moves from the earth to the air and back to earth
- 13. runoff water that runs along the soil and goes into lakes or rivers
- 14. the process of settling or being deposited as a sediment
- 15. the process of cleaning something
Down
- 1. a water source under the ground
- 2. the action or process of filtering something
- 3. the gelling or clumping of particles
- 6. water underground that supplies springs and wells
- 7. water moving downward through openings in the soil
- 9. the process where colloids come out of suspension in the form of a flake
- 10. rain, snow, sleet, or hail
- 12. water vapor becoming a liquid or a solid