Across
- 4. Meteoroids that burn up when entering Earth's atmosphere at high speeds
- 7. known as dirty snowballs
- 8. Only planet known to have human life
- 9. Last of the inner planets
- 10. Chunks of rocks through space
- 11. Meteor that reached Earth's surface
Down
- 1. Leftover remains from formation of the solar system
- 2. Celestial bodies that orbit the sun
- 3. Farthest planet from the sun
- 5. First of the outer planets
- 6. Natural satellites
- 9. Closest planet to the sun