Across
- 2. defined by mass
- 3. Pull or push on an object
- 5. anything that takes up space
- 7. natural satellite
- 8. Planet in the solar system
- 10. Scientists who discovered gravity
Down
- 1. Every particle in the universe attracts
- 4. Group Of planets
- 6. What pulls things down
- 7. property of matter
- 9. Star in the solar system