Across
- 2. group of organisms of the same species that live in a
- 3. area of land that drains into one main lake or river
- 6. observe, check, or keep track of something for a specific
- 7. amount of dissolved salts in water
- 10. measure of the amount of substances besides water
- 13. characteristics used to describe a stream or river
- 17. in water,circular movement of water particles that cause a
- 18. include volume and rate of flow, slope and shape of bed
Down
- 1. move over long distances but the water particles do not
- 2. water thats is safe for human to drink
- 4. average weather measured over a long period of time
- 5. area
- 8. thick
- 9. sample;description of how pure a water sample is
- 11. large moving body of lce; glaciers cans be many metres or
- 12. description of the variety of different species in an
- 14. daily change in water level of the oceans
- 15. in pattern that moves along the water's surftideace; the pattern
- 16. may also be used to describe variety in a population or