Across
- 1. the force of gravity
- 4. something on the top of something you touch
- 6. a planet made of ice
- 7. to keep doing something
- 9. what the solar systems are in
- 10. things that make up another thing
- 11. what the sun & our planets are in
Down
- 2. something that pushes on planets
- 3. the planets outside of the asteroid belt
- 5. a planet made of gas
- 8. the asteroids seperating inner and outer planets