Across
- 5. inner planets are composed of
- 6. Ptolemy
- 7. outer planets have
- 8. planets,moons,and stars move in
- 9. celestial bodys orbiting the sun
- 10. leftover remains of solar system
Down
- 1. dirty snow balls
- 2. who thought the Earth was the center first
- 3. moons
- 4. pieces of rock floating through space