Across
- 4. The smallest and closest planet to the Sun.
- 7. A dwarf planet once considered the ninth planet.
- 8. The farthest planet from the Sun.
- 10. A celestial body with a bright tail made of gas and dust.
- 11. This planet rotates on its side.
- 12. The planet famous for its rings.
- 13. The center of the solar system.
Down
- 1. A rocky object that orbits the Sun, mostly found between Mars and Jupiter.
- 2. The "Red Planet."
- 3. Earth's natural satellite.
- 5. The largest planet in the solar system.
- 6. The hottest planet in the solar system.
- 9. The only planet known to support life.
