Across
- 2. has rings
- 3. where we live
- 4. how much matter an object is made of
- 5. red planet
- 7. the measure of gravtional pull
- 10. the darkest planet
- 11. a star
- 12. farthest from the sun
- 13. the force that pulls objects towards each other
- 14. sideways planet
Down
- 1. a famous scientist
- 4. covered in rust
- 6. closet star
- 8. 5th planet from the sun, also a gas planet
- 9. hottest planet