Across
- 3. Human-made object that revolves around a planet.
- 5. Company that makes rockets and satellites, and send people into space to study the solar system.
- 6. Move around an object.
- 9. The Sun is a ...?
- 10. Biggest planet in the solar system.
Down
- 1. Planet that is furthest from the sun.
- 2. Covers majority of Earths surface.
- 4. Known as the "Red Planet".
- 7. Number of planets in the solar system.
- 8. Planet closest to the Sun.