Across
- 4. water ______ at 32 degrees fahrenheit
- 7. rain, snow, sleet, or hail
- 10. the process in which liquid becomes gas
- 11. what the earth would look like if there was no water
- 13. the first country to use chlorine to kill germs in water
- 14. water as gas in the air
Down
- 1. water moving downward through soil
- 2. the process in which water runs along the surface
- 3. gas becoming liquid
- 5. water source under the surface of the earth
- 6. H2O
- 8. water _____ at 212 degrees fahrenheit
- 9. water under ground
- 12. the amount of molecules in a single drop of water