Across
- 1. history of life documented by fossils
- 3. only planet known to have current, living life
- 7. largest planet
- 10. Region between Mars and Jupiter where most asteroids are found (2 words)
- 11. remains of ancient organisms
- 13. common component of asteroids
- 14. organisms change over time
- 15. number of planets in our solar system, not including Pluto
- 16. shooting star
- 17. diversity of life
Down
- 2. species that no longer exists
- 4. rocky body believed to have caused the extinction of dinosaurs
- 5. smallest planet
- 6. facts or data that support a claim, proof
- 8. indicates the burning down of forests due to an asteroid collision
- 9. furthest planet from the sun (not Pluto!)
- 10. study of outer space
- 12. curved path around another object (planets do this around the sun)