Science

2. A molecule that has electrically charged areas
3. A mixture that forms when one substance dissolves another
4. The substances that cause many types of pollution that can also include water pollution
6. The land area that supplies water to a river system
7. Practice of using less of a resource so that it will not be used up
9. The waste water and the different kinds of wastes in it
11. The process by which a gas changes to a liquid
12. The process of which nutrients builds up in the lake
13. Form of energy that an object has when it is moving
14. Continuous process by which water moves from earth's surface to the atmosphere and back
16. A ridge of land that separates watersheds
17. Process of passing water through a series of screens that allows water through but not larger solid particles
21. A form of precipitation that is more acidic than normal
23. A lake that stores water for human use
24. Material that prevents water from passing through
26. One possible method of obtaining fresh water from salt water
32. A substance that does the solute dissolves into
33. Energy that is stored and waiting to be used.
35. Place where an organism lives and obtains all things it needs to survive

1. Streams and smaller rivers that feed into a main river
2. A measurement of how acidic or basic water is
5. The process of which water is given off through the leaves as water vapor
8. Substances such as nitrogen and phosphorus that enable plants and algae to grow
10. Water that fills the cracks and spaces in underground soil and rock layers
11. Amount of one substance in a certain volume of another substance
12. Process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state
15. The combined level of Calcium and Magnesium in a sample of water
18. Materials that have large and connected pores
19. The process of which particles stick some sticky globs and sinks into the settling basins
20. Process of supplying water to areas of land to make them suitable for growing crops
22. Land area that is covered by shallow layer of water during some or all of the year
25. Chemicals intended to kill insects and other organisms that damage crops
27. The area of permeable rock or soil that is totally filled with water
28. A condition where an area experiences a long period of scarce rainfall
29. Heavier sediments that build up into long ridges
30. The combined force of attraction among water molecules and the molecules of surrounding materials
31. A widely spread source of pollution that cant be tied to a specific point of origin
34. Specific source of pollution that can be identified