Across
- 1. snowballs of frozen gases, rock, and dust
- 4. System Made of planets
- 7. Newton English Mathematician and physicist
- 8. mercury, Venus, earth, etc
- 10. The Sun
Down
- 2. Made of matter
- 3. A force that pulls two objects together
- 5. of Universal Gravity States that every particle attracts every other particle in the universe
- 6. Planet Opposite of a planet
- 9. a giant cloud of dust and gas