Across
- 5. The process of changing from a liquid to a gas
- 7. The chemical symbol for gold
- 8. The chemical symbol for water
- 9. A famous composer known for the 9th Symphony
- 12. The capital of France
- 14. A famous inventor known for the light bulb
- 15. The capital of Japan
- 16. A famous mathematician known for his work on gravity
- 18. The study of the universe
- 19. The study of living organisms
- 20. The smallest unit of life
Down
- 1. The process by which plants make their own food (
- 2. A famous novel by Harper Lee
- 3. A famous playwright from England
- 4. The study of the Earth's atmosphere
- 6. The largest planet in our solar system
- 10. A famous scientist known for the theory of relativity (
- 11. The study of the physical features of the Earth
- 13. A type of energy that comes from the sun
- 17. A famous painter known for the Mona Lisa