1. Large storage for water

1. Small waves on the water's surface

2. Origin of potable water

3. Process of making water safe to drink

4. Removes impurities from water

5. Precipitation in liquid form

6. Another word for water

7. Natural source of water

7. Narrow opening for pouring water

8. Remain on the water's surface

9. Precipitation in solid form

9. Drink a small amount of water

10. Faucet for drawing potable water

11. Artificial waterway

12. Essential for all forms of life

13. Device used to extract water

14. Underground source of water

15. State of water

16. Gaseous form of water

17. Frozen form of water

18. Need for water

19. Water droplets condensing on surfaces

20. Increase in the volume of water