Thor is a very strong god in old stories. He has bright red hair and a big beard. Thor is known for his special hammer. Its name is Mjölnir (Myol-neer). This hammer is very mighty!
Long ago, some clever dwarves made Mjölnir. They made it with magic. This hammer is so heavy that almost no one can lift it. Only Thor is strong enough to pick up Mjölnir. Sometimes, other good and brave people can lift it too. These people are called "worthy." The hammer always knows if someone is worthy.
When Thor throws Mjölnir, it flies like lightning. It always comes back to his hand, just like a boomerang. When Mjölnir hits things, it makes a big boom! That sound is thunder. Thor uses his magic hammer to protect his home and his friends. He is a brave hero, and Mjölnir helps him keep everyone safe. It is a very special tool for a very special god.