Earth, Sun, and Moon

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Across
  1. 3. the moon has less of this than Earth
  2. 4. composed of gases
  3. 8. the Earth does not ___________ it's own light
  4. 9. at noon your shadow will be
  5. 11. has no atmosphere
  6. 12. bowl shaped indentations or cavities on the surface of a planet or moon
  7. 13. an imaginary line that runs through the center of the Earth
  8. 15. to move around another object in space
  9. 17. the spinning of a planet, moon, or other object on it's axis
Down
  1. 1. you are on the side of the Earth facing away from the sun
  2. 2. experiences low and high tides
  3. 4. the ________ of the moon is dry and rocky
  4. 5. causes the features on the moon you can easily see from here
  5. 6. where the sun sets
  6. 7. protects the Earth from meteorites
  7. 10. your shadow right before the sun goes down
  8. 14. the dark image cast on some surface or thing blocking the light of the sun
  9. 16. the time it takes for Earth to make a complete rotation on it's axis