Across
- 1. positively charged substance.
- 3. natual settelite.
- 4. Most dense atmosphere.
- 6. second largeest planet.
- 8. smallest planet in the solar system.
- 10. dwarf planet.
- 11. 3rd closest planet from the sun.
- 13. largest planet.
- 14. substance that cant be broekn down simpler.
Down
- 2. dense center of an atom.
- 5. ice giant.
- 7. negatively charged substance.
- 8. "the red planet".
- 9. densest giant planet.
- 12. the smallest unit that contains chemical properties