Across
- 4. first to record methods for drinking water
- 7. You can ____ water in the sun to clean it
- 8. how much percent of water in is a apple
- 9. Less than _ percent on earth is fresh water
- 12. ___ percent on earth is salt water
- 13. earth would look like the ___ without water
- 14. Drip a piece of hot ____ to clean water
- 15. ___ percent of water on earth is glacier
Down
- 1. first country to use chlorine to kill germs
- 2. you blood has this much water in it
- 3. Water boils at ____
- 5. water ____ at this temp
- 6. Water freezes at ____
- 10. molecues of water in a single droplet
- 11. earths surface is ___ percent water