Across
- 2. the force that holds our planet together
- 3. the planet farthest from the Sun
- 6. More _____ equals stronger gravity.
- 7. the shape of planets' orbits
Down
- 1. The scientist who discovered how to find the distance of a planet from the Sun
- 2. The farther from the sun a planet is, the _____ the distance between the planets.
- 4. the path a planet travels around the Sun
- 5. The scientist who discovered gravity
- 6. the planet closest to the Sun