Across
- 4. how many molecules of water are in one drop
- 7. a water source under the ground
- 8. water moves from the earth to the air and to the earth again
- 11. liquid water becoming a gas
- 15. water moving downward through openings in the soil
Down
- 1. water as a gas
- 2. rain,snow,sleet,hail
- 3. first people to treat water
- 5. water that runs along the soil and goes into lakes and rivers
- 6. solid,liquid,gas
- 9. water becoming a liquid or solid
- 10. the first country to use chlorine to kill germs in water
- 12. one way to treat water
- 13. water under the ground that supplies springs and wells
- 14. percent of water that a person's body is made of