Across
- 4. What is the chemical symbol for iron?
- 6. What is the powerhouse of the cell?
- 8. Which animal can live both in water and on land?
- 10. What is the term for three consecutive strikes in bowling?
Down
- 1. Which vitamin is produced when human skin is exposed to sunlight?
- 2. In which country did the Olympic Games originate?
- 3. Which country was previously known as Persia?
- 5. What type of animal is a Komodo dragon?
- 7. How many hearts does an octopus have?
- 9. Which metal is liquid at room temperature?