Across
- 3. More islands than any other countries
- 4. Hardest natural substance
- 8. First scientist awarded with two noble prizes
- 9. How many seconds did an individual blood cell takes to make a complete circuit of the body.
- 10. Capable to express over 100 vocal sounds
- 12. Which animal have 3 hearts
- 13. Where is the world largest bridge located
- 16. Youngest country in the world
- 18. Male species give birth to young one
- 19. Most earthquake country
Down
- 1. how many countries competed in 2018 winter olympics
- 2. Hottest planet in our solar system
- 3. World largest amphibian
- 5. Where is the oldest living tree located
- 6. Strongest natural material
- 7. Oldest profession in the world
- 11. Breathe through their butts
- 14. Brightest object in the sky
- 15. Which animal sleep an average of 22 hours a day
- 17. First home video games developed