Across
- 3. A celestial object that orbits a planet
- 5. The last Outer Planet
- 7. Planet with the most rings
- 9. Separates the Inner Planets from the Outer Planets
- 12. The planet that we live on
- 14. Another name for Mars
- 15. To move repeatedly around something
- 16. "Planet nicknamed Earth's Twin"
Down
- 1. Mercury is __% the size of Earth
- 2. The first 4 planets
- 4. Nickname given to the Outer Planets
- 6. Planet that is tilted on its side
- 8. Jupiter is the _______ planet.
- 10. The last 4 planets
- 11. The last Inner Planet is ________.
- 13. Closest planet to the Sun