Earth and space

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Across
  1. 2. where the air is cooler, water vapor turns back into drops of water
  2. 4. everything that exists
  3. 7. occurs when one object passes through the shadow of another
  4. 10. rain or snow
  5. 11. when weathering changes things over time
  6. 13. the path Earth takes as it revolves
  7. 14. the planet we live on
  8. 17. the center of the Earth
  9. 18. Each point at Earth's orbits at which daylight hours are at their greatest or fewest hours
  10. 19. the layer of rock beneath Earth's crust
Down
  1. 1. the process of breaking rock into silt, clay, sand, and other tiny pieces.
  2. 3. an imaginary line that passes through Earth's center and its north and south poles
  3. 5. The process of liquid water changing to water vapor
  4. 6. Large, round bodies that revolve around a star
  5. 8. is the average of all weather conditions through all seasons over a period of time.
  6. 9. the cycle in which Earth's water moves through the environment
  7. 12. the 3rd layer of the Earth.
  8. 14. when the hours of daylight and darkness are the same
  9. 15. the distance light travels in one Earth year.
  10. 16. the outer layer of the earth
  11. 18. is a star and has a temperature of 5,778 degrees