The Moon, Earth, & Sun

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Across
  1. 2. when an object in space comes between the sun and a third object.
  2. 4. when you can't see the moon in the sky
  3. 6. spinning on an axis
  4. 7. a system for organizing time that defines a year
  5. 9. the larger, less dark part of a shadow
  6. 12. the tendency of an object to keep doing what its doing
  7. 14. when light is growing on the moon.
  8. 15. the only natural satellite Earth has.
  9. 17. the huge ball of plasma that gives us heat and light
  10. 19. the imaginary line that things rotate on.
Down
  1. 1. tide caused by a new moon or full moon position
  2. 3. when the sun appears the farthest north/south of the equator.
  3. 5. one object going around another
  4. 8. when light is fading on the moon.
  5. 10. the very darkest part of the moon's shadow
  6. 11. a force of attraction between objects
  7. 13. halfway between the solstices
  8. 16. the path one object takes around another
  9. 18. tide caused by a quarter moon phases