Science Reading

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Across
  1. 1. Land area that is covered by shallow layer of water during some or all of the year
  2. 3. Form of energy that an object has when it is moving
  3. 4. Heavier sediments that build up into long ridges
  4. 8. Process of passing water through a series of screens that allows water through but not larger solid particles
  5. 10. Process of supplying water to areas of land to make them suitable for growing crops
  6. 11. A mixture that forms when one substance dissolves another
  7. 13. Chemicals intended to kill insects and other organisms that damage crops
  8. 14. Place where an organism lives and obtains all things it needs to survive
  9. 16. The land area that supplies water to a river system
  10. 17. A condition where an area experiences a long period of scarce rainfall
  11. 18. The combined force of attraction among water molecules and the molecules of surrounding materials
  12. 19. Material that prevents water from passing through
  13. 20. Amount of one substance in a certain volume of another substance
  14. 22. Streams and smaller rivers that feed into a main river
  15. 23. Practice of using less of a resource so that it will not be used up
  16. 24. Water that fills the cracks and spaces in underground soil and rock layers
  17. 28. Process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state
  18. 29. The combined level of Calcium and Magnesium in a sample of water
  19. 34. The process by which a gas changes to a liquid
  20. 36. Specific source of pollution that can be identified
  21. 37. A lake that stores water for human use
Down
  1. 2. A form of precipitation that is more acidic than normal
  2. 5. A substance that does the solute dissolves into
  3. 6. The process of which particles stick some sticky globs and sinks into the settling basins
  4. 7. The waste water and the different kinds of wastes in it
  5. 9. A molecule that has electrically charged areas
  6. 12. One possible method of obtaining fresh water from salt water
  7. 15. Substances such as nitrogen and phosphorus that enable plants and algae to grow
  8. 21. The process of which water is given off through the leaves as water vapor
  9. 25. Continuous process by which water moves from earth's surface to the atmosphere and back
  10. 26. The substances that cause many types of pollution that can also include water pollution
  11. 27. A measurement of how acidic or basic water is
  12. 30. A widely spread source of pollution that cant be tied to a specific point of origin
  13. 31. Energy that is stored and waiting to be used.
  14. 32. Materials that have large and connected pores
  15. 33. A ridge of land that separates watersheds
  16. 35. The area of permeable rock or soil that is totally filled with water