Across
- 3. is hottest planet in our solar system
- 5. breath through their butts
- 6. home video games developed first
- 12. largest particle accelerator
- 15. world largest amphibian
- 16. oldest living tree in the world
- 17. have over 100 vocal sounds
- 18. is the youngest country in the world
Down
- 1. has 3 hearts
- 2. is the first scientist awarded two noble prizes
- 4. true carnivores
- 7. has more islands than any other countries
- 8. is the oldest profession in the world
- 9. is the most earthquake country
- 10. world largest manmade oyster reef created
- 11. male species give birth to young one
- 13. is the best place to see rainbow
- 14. world largest bridge