Across
- 6. chunks of rock floating through space
- 8. name of the four planets closest to the sun
- 11. "dirty snowball"
- 12. left over remains from the formation of the solar system
Down
- 1. meteor that reaches Earth's surface
- 2. celestial body's orbiting the sun
- 3. biggest planet in our solar system
- 4. meteoroids that burn up upon entering earths atmosphere
- 5. smallest planet in the solar system
- 7. planet with the most moons in the solar system
- 9. name of the four planets farthest
- 10. natural satellites