Science Definitions

2. daily change in water level of the oceans
5. water that is safe for humans to drink
8. highest point of land on a continent; rivers flow into different oceans depending on which side of the divide they start
11. technique for separating solutions that involves boiling and condensation
12. area of land that drains into one main lake or river
14. measure of the amount of substances besides water in water sample
16. solid part of the earth
17. average weather measured over a long period of time
18. glaciers that cover vast areas of land

1. a characteristic that allows an organism to live in its environment
3. a group of organisms of the same species that live in a particular area
4. characteristics used to describe a stream or river
6. eroded rock fragments and soil carried by water or wind
7. in water, circular movement of water particles that causes a change in pattern that moves along the water's surface
9. description of the variety of different species in an ecosystem
10. stream of water that moves within a larger body of water
13. amount of dissolved salts in water
15. large moving body of ice