Across
- 7. natural or artificial place that holds water for human supplies
- 9. water that moves within a larger body of water
- 11. large moving body of ice
- 14. process of depositing
- 15. amount of dissolved salts in water
- 17. describe a stream or river
- 21. a state of the atmosphere (wind,temperature, cloudiness, moisture)
- 24. exposed rock decomposing
- 25. land that drains into one lake or river
- 26. Technique for separating solutions
- 27. crust and upper mantle of the earth
- 28. circular movement of water
- 29. description of the variety of different species in an ecosystem
- 30. ridge of gravelly and sandy drift
Down
- 1. material left on the ground by a glacier
- 2. to rise in waves (sea)
- 3. measure of how pure a water sample is
- 4. thick cover of ice over an area, sloping in all directions from the center
- 5. narrow or oval rounded hill
- 6. production of moisture from the atmosphere (rain, snow, sleet, dew)
- 8. water beneath the surface of the ground
- 10. daily change in water level
- 12. lake formed when large chunks of ice left behind by the glacier melted away
- 13. water safe for humans to drink
- 16. analysis of water to make sure it is potable
- 18. highest point of land on a continent
- 19. measuring of quantity
- 20. Measured weather over a long period of time
- 22. concerned with quality
- 23. eroded rock fragments