Earth and space

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Across
  1. 2. the layer of rock beneath Earth's crust
  2. 3. when the hours of daylight and darkness are the same
  3. 4. when weathering changes things over time
  4. 11. the center of the Earth
  5. 13. the distance light travels in one Earth year.
  6. 14. the process of breaking rock into silt, clay, sand, and other tiny pieces.
  7. 16. Each point at Earth's orbits at which daylight hours are at their greatest or fewest hours
  8. 17. everything that exists
  9. 19. the outer layer of the earth
  10. 20. Large, round bodies that revolve around a star
  11. 22. the path Earth takes as it revolves
  12. 23. an imaginary line that passes through Earth's center and its north and south poles
  13. 24. The process of liquid water changing to water vapor
Down
  1. 1. where the air is cooler, water vapor turns back into drops of water
  2. 5. the 3rd layer of the Earth.
  3. 6. the cycle in which Earth's water moves through the environment
  4. 7. is a star and has a temperature of 5,778 degrees
  5. 8. when layer of sediment are squeezed together they form this
  6. 9. the planet we live on
  7. 10. rocks that form when melted rock hardens
  8. 12. a rock changed by heat or pressure but not completely melted
  9. 15. is the average of all weather conditions through all seasons over a period of time.
  10. 18. rain or snow
  11. 21. occurs when one object passes through the shadow of another