Across
- 3. is the fifth planet out from the Sun.
- 5. sometimes called Earth's sister planet.
- 6. the third largest planet.
- 8. is the closest planet to the Sun.
- 10. has 62 moons.
- 11. is the largest dwarf planet.
Down
- 1. the fourth planet from the Sun and is the second smallest planet in the solar system.
- 2. is almost a perfect sphere.
- 4. is the Earth's only natural satellite.
- 7. became the first planet discovered with the use of a telescope.
- 9. the third planet from the Sun.