Across
- 2. The fastest land animal
- 6. The fastest bird in the world
- 9. The tallest waterfall in the world
- 10. The fastest fish in the world
Down
- 1. The very first plane
- 3. The biggest animal in the world
- 4. The tallest mountain in the universe
- 5. The biggest shark
- 7. How many hours does a human sleep
- 8. The slowest animal in the world