Across
- 3. The circular motion that the planets do.
- 5. The gases that are located around the Earth
- 7. The person who discovered the laws of motion
Down
- 1. A region of the space where planets are located
- 2. Push or pull movement
- 4. The force that keeps us on the floor
- 6. Measured by the amount of matter that an object has
- 8. The units that are used for force
- 9. Measured on the gravitational pull that an object has