Unit E

5. water that is safe for humans to drink
6. eroded rock fragments and soil carried by water or wind
7. one of the most diverse and richest ecosystems
11. the shoreline area where animals and plants live that withstand the pounding of the waves
13. is the average weather measured over a long period of time
15. the deepest part of the ocean; much of this water receives no light and contains little oxygen
16. characteristics used to describe a stream or river
20. a shelf of land that extends out from the edge of a continent below the ocean’s surface
22. the movement of water through a membrane from an area of lower water concentration to one of higher concentration
24. amount of dissolved salts in water
25. stream of water that moves within a larger body of water

1. daily change in water level of the oceans
2. the circular movement of water particles that causes a change in pattern that moves along the water's surface
3. highest point of land on a continent, river flows into different oceans depending on which side of the divide they start
4. area of land that drains into one main lake or river
8. measure of the amount of substances besides water in a water sample
9. changes that take place over a relatively short period and don’t last very long
10. technique for separating solutions that involves boiling and condensation
12. a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms
14. changes in population may also result from natural causes or human activities
17. water containing a large amount of salt.
18. description of the variety of different species in an ecosystem
19. group of organisms of the same species that live in a particular area
21. water containing a high concentration of calcium
23. to observe, check, or keep track of something for a specific purpose