water system

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Across
  1. 2. moderating effect on air temperature
  2. 7. Underground layer of rock, gravel, sand, etc
  3. 8. starts from thunderstorms over the sea
  4. 13. Is created when snow builds up overtime
  5. 15. Layer that does not allow water to pass
  6. 16. A sea with too much salt
  7. 17. Water is able to pass through it
  8. 19. Vaporization on liquid that turns to gas
Down
  1. 1. The gas state of a liquid or solid
  2. 3. oil drilling
  3. 4. takes longer to heat up
  4. 5. Area of land where water collects and stay
  5. 6. cools off faster than water
  6. 9. also known as a continental glacier
  7. 10. Divides one watershed from another
  8. 11. the name of Canada's worst hurricane
  9. 12. can form if air in the thunderstorm spin
  10. 14. Is a type of surface water
  11. 18. small area with a different climate
  12. 20. Harmful materials that affect the Earth