Moon

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Across
  1. 2. the line between the lit & unlit part of the moon
  2. 4. an object in orbit around another object
  3. 5. getting bigger
  4. 6. a moon that is less than half but more than new
  5. 9. a moon that is more than half but less than full
  6. 11. to move around in a circle
  7. 12. to move around in a circle around an object
  8. 13. related to the moon
Down
  1. 1. shaped like an ellipse - an elongated circle
  2. 3. to turn on an axis (spin)
  3. 5. getting smaller
  4. 7. when half of the part of the moon that illuminated is visible
  5. 8. when the part of the moon that is illuminated is completely visible from Earth
  6. 10. when the part of the moon that is illuminated is not visible from Earth