Across
- 1. along distance that contains millios of meters
- 2. when an object moves around another object
- 3. Large planets that contain hydrogen and helium
- 5. center of the earth
- 8. when an planet orbits ouside of the astroid belt
- 10. where meteors are
- 12. collection of eight planets and there moons
- 13. planet a planet that orbits inside the astroid belt
Down
- 1. mixture of gases that siround the earth
- 4. center where the sun is
- 6. when the moon passes between the earth and sun
- 7. a large ball in space
- 9. planets planets with a bumpy surface
- 11. the force that brings us down when we jump in the air and fall back down