Across
- 4. First planet discovered by a telescope.
- 6. It is 99.9% of the mass of the solar system.
- 7. Second smallest planet in the solar system.
- 8. The closest planet to the sun.
- 9. Only planet in the solar system that has life.
Down
- 1. Second brightest object in the sky.
- 2. This planet has 62 moons.
- 3. The fifth planet from the sun.
- 5. This planet has 62 moons.
- 6. Earths only natural satellite.