Across
- 3. This is why people don't float in the air
- 4. Newton's new field of Math
- 7. The shape of planets orbits
- 8. The gravity from this holds planets in place
Down
- 1. What Newton invented to measure attraction
- 2. Physicist who corrected Newton's ideas
- 5. Newton discovered gravity when this fell
- 6. Gravity holds this in an orbit around the Earth