Across
- 3. how much matter an object is made up of.
- 4. ___ of universal gravitation- what Newton realized.
- 8. another thing that affects gravity.
- 9. A rocky planet formed in the middle of a dust cloud.
- 10. One thing that made the Earth.
Down
- 1. the scientist who said that if you drop a 5 and 10 pound ball at the same time from the Leaning Tower of Pisa, they would hit the ground at almost the same time.
- 2. the force that pulls objects toward each other.
- 5. the gravitational pull on the object.
- 6. something that affects gravity.
- 7. Isaac ______ was the man who discovered gravity.