Untitled

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Across
  1. 1. The earth orbits this.
  2. 4. You look at the stars here.
  3. 5. special
  4. 7. The center of something.
  5. 10. This orbits the earth.
  6. 11. We use this to look at the stars.
  7. 14. The _______________ from Pingdingshan to Zhengzhou is 200km.
  8. 16. A rock in space.
Down
  1. 1. A spaceship without people to study space.
  2. 2. This has millions of stars in it.
  3. 3. A person who studies space.
  4. 4. The earth ___________ the sun.
  5. 6. This is like an asteroid but it has a tail.
  6. 8. A rock that came from space.
  7. 9. system This has one star, many planets, and asteroids in it.
  8. 12. This is flat and round.
  9. 13. This has many galaxies in it.
  10. 15. Apples fall from trees because of _______________.