Earth-Moon-Sun System

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Across
  1. 1. The Imaginary line that passes through the Earth's center
  2. 3. The __________ side of the moon always faces the Earth.
  3. 7. The movement of one object around another.
  4. 9. The spinning of the Earth on its axis
  5. 10. Earth's rotation causes day and __________
  6. 11. Is the Greek word for sun.
Down
  1. 1. Comets ___________ revolve around the sun.
  2. 2. The Earth and the other planets revolve around the sun.
  3. 4. Earth has a north and south _______________ pole.
  4. 5. The Earth follows a path or __________________
  5. 6. In Greek, what does geo mean?
  6. 8. The Earth follows a path as it revolves around the sun.