Across
- 3. The largest planet in the Solar System.
- 7. A layer of gases that surround the Earth.
- 8. The force that keeps us standing on the ground and not flying into space.
- 10. A planet known for its rings.
- 11. The centre of the solar system.
Down
- 1. Clouds of dust and gas in space.
- 2. The galaxy we live in.
- 4. Groups of stars that form patterns in the night sky.
- 5. A 'belt' of natural debris between Mars and Jupiter.
- 6. A natural satellite orbiting Earth.
- 9. Known as the Red planet.