Across
- 3. a harmful material released into the environment
- 4. the release of an unwanted substance into the environment
- 8. the streams and rivers that feed into a main river
- 13. an above ground water storage area
- 14. a rock layer that collects and stores water
- 15. a well in which water rises because of pressure within the aquifer
- 20. the energy of moving water
- 22. a process by which a liquid changes into a gas
- 25. the process by which a gas changes into a liquid
- 26. the area in the ocean where light penetrates
- 28. water that flows over the land without sinking into the ground
- 29. a type of fresh water wetland that is generally grassy
- 30. a hot spring in which the water is under that will occasionally erupt hot water and steam
Down
- 1. the movement of cold, nutrient rich water from deep layers of the ocean up to the surface
- 2. water located below Earth's surface
- 5. the process in which water vapor is released into the air from the leaves of plants
- 6. an area of land covered with a shallow layer of water during some or all of the year
- 7. water that is not salty
- 9. a place where freshwater from a river meets and mixes with salt water from the ocean; near the mouth of a river
- 10. water that falls to Earth's surface in the form of rain, sleet, hail, or snow
- 11. water that is a mixture of both salt and freshwater; found in estuaries
- 12. the level of the top of the water in the saturated zone
- 16. the continuous movement of water between Earth's surface and its atmosphere
- 17. the process of nutrients building up in a lake or other bodies of water
- 18. a type of freshwater wetland that usually contains trees and shrubs
- 19. a measure of how clear water is
- 21. an area of land that drains into a stream, river, lake, or other body of water
- 23. a type of freshwater wetland that is characterized by many types of mosses
- 24. the ratio of mass to volume of a substance
- 27. all the water found on, above, and under Earth's surface