A shark tooth is a pointy thing that comes from inside a shark's mouth. Sharks are big fish that live in the oceans and have lots of teeth! They use their teeth to bite and eat their food.
Shark teeth are different from our teeth because they can fall out and get replaced with new teeth. Sharks have a lot of teeth and they can grow new ones really fast. This is because they need strong teeth to eat their food which can be tough, like fish or even other sharks! Each tooth has a different shape depending on which type of shark it comes from.
People like to collect shark teeth because they are pretty and interesting. Sometimes you can find shark teeth washed up on the beach. If you are lucky, you might even find a big one! But it's important to remember that shark teeth are very sharp, so always be careful when handling them.