Across
- 2. The process by which plants make their food
- 4. The chemical element with the symbol "Fe"
- 6. A famous painting by Leonardo da Vinci
- 8. A Greek god of the sea
- 9. A famous scientist who developed the theory of relativity
Down
- 1. The capital of Japan
- 2. The largest ocean on Earth
- 3. The smallest prime number
- 5. A device used to measure atmospheric pressure
- 7. The unit of electrical resistance