Across
- 2. (Largest planet)
- 3. (Layer of gases around Earth)
- 10. (A synonym for "volcano")
- 11. (Device that measures temperature)
- 12. (The number of continents)
- 13. (Scientist who proposed the theory of relativity)
- 14. (Main character in The Hunger Games)
- 15. (Author of Pride and Prejudice)
Down
- 1. (A shape with three sides)
- 4. (Instrument used to view distant objects)
- 5. (Chemical symbol for water)
- 6. (Process by which plants make their food)
- 7. (He discovered the law of gravity)
- 8. (Author of Harry Potter)
- 9. (Capital of France)