Earth, Moon, Sun crossword puzzle

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Across
  1. 3. a moon outside solar system
  2. 6. the fire ball in the sky
  3. 7. the size of things
  4. 10. to shine light on an object
  5. 12. eclipse when the moon is completely dark
  6. 13. moon moon phase in which is not visible
  7. 14. a planet outside our solar system
  8. 17. border between light and dark
  9. 18. moon the phase of half of a moon
Down
  1. 1. moon less then half of a moon
  2. 2. rocky sphere in the sky
  3. 4. moon a moon phase that looks like a full
  4. 5. an object or diagram
  5. 6. system the sun and planets in the sky
  6. 8. moon a moon phase less than half
  7. 9. something that happens over and over again
  8. 11. phase the shape of the illuminated part of of the moon
  9. 15. nearly circular path that goes around a smaller object
  10. 16. the amount of time it takes for a full cycle to happen