Across
- 3. the only planet that has living things on it.
- 5. an instrument used to see look at stars and planets from distances far away.
- 7. this is what earth is mostly made of.
- 9. the star at the center of the solar system.
Down
- 1. the force that keeps things from floating around freely on Earth.
- 2. the season that we have when the earths axis is tilted furthest away from the sun.
- 4. a large body that revolves around a star
- 6. the planet known for its many rings
- 8. an imaginary line that passes through the North and South Poles