Across
- 5. A technique for separating minerals to create pure water.
- 6. Are streams of water that move within larger bodies of water.
- 10. Water that humans can drink safely.
- 13. A system where water is forced through a membrane /filter to remove salt from water.
- 14. Highest point of land on a continent.
- 16. Rock fragments and soil from erosion.
- 17. The different kinds of species in an ecosystem.
Down
- 1. means to observe.
- 2. A description of how pure water is.
- 3. Are changes in pattern on a water surface.
- 4. Are large pieces of moving ice.
- 7. The pattern of flow and slope of the stream’s bed.
- 8. The total of salts dissolved in water.
- 9. Water that contains high amounts of minerals and calcium and magnesium.
- 11. A group of organisms that live in a certain area.
- 12. Change in water level.
- 15. Is average weather measured over a long period of time.