Cart wheel

Okay kiddo, a cart wheel is a big round circle that helps a cart move. Just like how our bikes have wheels, carts have wheels too. These wheels are much bigger and are made of wood or metal. They have a rubber tire around the outside of the wheel that helps it grip the ground and move smoothly. When the cart moves, the wheels spin around and around and the cart rolls along with it. So next time you see a cart, remember that the wheels are what makes it go!