Across
- 3. Any physical, chemical, biological or radiological substance or matter in water. Drinking water may reasonably be expected to contain at least a small amount of this and still be considered safe.
- 4. Water (as that is in the ocean) that naturally contains a significant amount of salt.
- 8. a partly enclosed body of water along the coast where one or more streams or rivers enter and mix freshwater with saltwater.
- 11. Water that is considered suitable for consumption.
- 13. An area filled with water, localized in a basin or depression, it is surrounded by land.
- 15. An animal or plant which lives in the water for most or all of its life.
- 18. Name for moving water...larger than a stream
- 19. A substance used by an organism to survive, grow and reproduce.
- 22. The continuous movement of water on, above and below the Earth's surface.
Down
- 1. The contamination of bodies of water, usually as a result of human activities; results when contaminants are introduced into the natural aquatic environment.
- 2. The level of free oxygen present in the water; its important in determining water quality because of its influence on aquatic organisms.
- 5. an underground reservoir of water that rests in a layer of sand, gravel, or rock that holds the water in pores or crevices.
- 6. The physical change from a liquid to a gas
- 7. an artificial or natural lake built by placing a dam across a stream or river and used to store and often regulate the discharge of water; underground storage area of water, such as in an aquifer.
- 9. Name for moving water...smaller than a river
- 10. something that is found in nature that is useful to humans.
- 12. the chemical, biological, and physical status of a body of water, the fitness of a water source for a given use, such as drinking, fishing or swimming
- 14. resources water and all things that live in or around water that are used by humans
- 16. a body of standing water small enough that sunlight can reach the bottom across the entire diameter.
- 17. Distinct ecosystem that is covered by water, either permanently or seasonally; plays a number of functions including water purification, water storage, processing of carbon and other nutrients, stabilization of shorelines and support of plants and animals.
- 20. A place where groundwater flows to the surface of the Earth; where an aquifer meets the ground surface
- 21. a body of water partially enclosed by land that is directly open or connected to the ocean.
- 22. The layer of water at or near the Earth's surface.