Unit E

9. Water water containing a high concentration of calcium and magnesium
10. Water water that is safe for humans to drink
11. techniques for separating solutions that involves boiling and condensation
13. amount of dissolved salts in a water
14. area of land that drains into one main lake or river
18. physical characteristics or behaviour of a species that increases the species chances of survival in a particular movement
19. Osmosis movement of water through a membrane from an area of lower water concentration to one of the higher water concentration

1. group of organisms of the same species that live in a particular area
2. description of the variety of different species in an ecosystem
3. eroded rock fragments and soul carried by water and wind
4. observe or check or keep track of something for a specific purpose
5. large moving body of ice
6. Characteristics characteristics used to describe a stream or a river
7. Divide highest point of land on a continent
8. average weather measured over a long period of time
12. stream of water that moves within a larger body of water
15. in water, the circular movement of water particles that causes a change in pattern that moves along the water’s surface
16. Quality measure of the amount of substances besides water in a water sample. Description of how pure a water sample is
17. daily change in water level of the oceans