Across
- 3. Author of Harry Potter.
- 5. Largest planet in our solar system.
- 6. The hardest natural substance.
- 9. The process plants use to make food.
- 11. Largest organ in the human body.
Down
- 1. The Greek god of the sea.
- 2. Animal group including frogs and toads.
- 4. Metal attracted to magnets.
- 7. Gas we breathe in to survive.
- 8. Capital city of Japan.
- 10. Longest river in the world.