Earth, Moon and Sun!

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Across
  1. 2. The Earth revolves around the _______
  2. 4. A moon that is more than half illuminated
  3. 7. The imaginary line that runs through the middle of the earth horizontally
  4. 10. Causes the day and night cycle on Earth
  5. 11. Caused by the tilt of the Earth and it’s revolution around the sun
  6. 12. The moon phase where the entire illuminated face is visible
  7. 16. One year on Earth
  8. 18. The _______ takes 24 hours to rotate on it’s axis
  9. 19. Describes the moon appearing to grow larger
  10. 20. The hemisphere we live in!
  11. 21. Occurs when the hemisphere is tilted away from the sun
Down
  1. 1. A moon that is half illuminated
  2. 3. The moon phase where it appears there is no moon
  3. 5. Occurs when the hemisphere is tilted toward the sun
  4. 6. The imaginary line that passes through the earth from North to South
  5. 8. Takes approximately 27 days to revolve around the earth
  6. 9. Describes the moon appearing to shrink
  7. 13. The path that the Earth takes to move around the sun
  8. 14. Earth is _______ to approximately 23.5 degrees
  9. 15. The _______ of the moon show how the moon appears to change shape over a month
  10. 17. A moon that is less than half illuminated