Across
- 3. Dirty snowballs
- 6. The inner planets
- 8. Most are between Mars and Jupiter
- 10. Natural satellite
Down
- 1. Shooting stars
- 2. Meteor that hits the surface
- 4. First scientist believe in a heliocentric solar system
- 5. Farthest planet from the sun
- 7. The outer planets
- 9. The center of the solar system