1. What are shark skeletons made of?
2. How long do most sharks live?
3. What is the largest shark?
4. Sharks have special cells on their head that enable them to find fish that bury themselves in the sand. What kind of energy can these cells detect?
5. Sharks usually swim at about 2 mph, but what is the fastest speed a shark can swim?
6. As a shark grows, it is constantly replacing its teeth with larger ones. How many teeth will a shark have used over a lifetime?
7. What are sharks worst enemy?
