Across
- 2. inside most giant planets.
- 6. atmosphere gives it a rich blue hue
- 8. Quickest orbit around the Sun
- 12. consists of 8 planets 4 terrestrial and 4 gas giants
- 13. two are still operational
- 15. It is slightly smaller than Pluto, but more massive.
- 16. has 27 moons
Down
- 1. can be sent out in space, but their trajectory must be carefully planned
- 3. Extremely thick atmosphere
- 4. Largest of the terrestrial planets
- 5. Second largest object in the solar system
- 7. observe planets from Earth’s surface
- 9. “Earth-like”: rocky
- 10. giant spheres of gases
- 11. Iron on surface
- 14. Rings are made of ice and dust