Across
- 5. What Earth would look like without water
- 6. water as a gas in the air
- 8. rain, snow, sleet, or hail
- 10. water that runs along the soil into bodies of water
- 11. the temp water freezes in celcius
- 14. first people to record cleaning water
- 15. how many oxygen atoms in a water molecule
Down
- 1. water under the ground
- 2. water moves in the air and comes back to the earth again
- 3. water vapor becoming dew or frost
- 4. same as H2O
- 7. liquid water becoming a gas
- 9. water moving downward through cracks in the soil
- 12. first country that used chlorine to kill germs in water
- 13. a water source under the ground