Earth Science Exam Review

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Across
  1. 2. plate boundaries that move toward each other
  2. 6. layers clouds that cover the sky like sheets
  3. 10. cold air is more ______ than warm air, and sinks, creating low pressure systems
  4. 11. all of the living and nonliving things in a particular area
  5. 15. the name of the supercontinent
  6. 18. a measure of how cloudy or clear a water sample is
  7. 19. the idea that earth's average temperatures are rising
  8. 22. plate boundaries that move away from each other
  9. 23. occur as a results of earth's revolution around the sun
  10. 25. the reaction that fuels the sun
  11. 27. the average weather of a particular region over a span of 30 years
  12. 28. the maximum number of organisms an ecosystem can support
  13. 29. the layer of the atmosphere where earth's weather occurs
  14. 32. the protective layer of the atmosphere responsible for blocking harmful UV rays
  15. 34. the process of rocks being broken down
Down
  1. 1. rocks that are made through the process of compaction and cementation
  2. 3. a type of pollution that can be traced back to a specific source
  3. 4. plate boundaries that slide past each other
  4. 5. a relationship in which one organism benefits and the other is not affected
  5. 7. the process of rocks being carried away
  6. 8. the idea that explains the creation of the earth
  7. 9. 97% of earth's water is found here
  8. 12. a relationship in with both organisms benefit
  9. 13. the agent of erosion responsible for the creation of the Grand Canyon
  10. 14. Cholera is a type of ________ that can enter the water supply and cause serious disease
  11. 16. a group of the same species living in the same area
  12. 17. the living factors within an ecosystem
  13. 20. a curve in a river
  14. 21. the process that changes rocks into new types of rocks
  15. 24. heat currents that fuel plate tectonics
  16. 25. nearly all of earth's fresh water is _______
  17. 26. rocks that are created from cooling lava
  18. 28. clouds that are fluffy and typically mean fair weather
  19. 30. this type of eclipse occurs when the moon moves between the earth and the sun
  20. 31. the scientist who first proposed continental drift
  21. 33. a measure of how acidic or basic a water sample is