A garden fork is like a big, sturdy, metal fork that you can use in your garden to help you dig up and move around the soil. It has a long handle so you can hold it easily, and several pointy tines (the part that looks like the prongs on a regular fork) that are strong enough to poke into the ground and move things around.
With a garden fork, you can loosen up the soil to help your plants grow better. You can also use it to lift up weeds that are growing in your garden, or to help you move around big rocks or other obstacles that might be in your way.
It's important to always use a garden fork safely- that means making sure you hold it the right way, and never poking it into anything that could get hurt (like another person or animal). With a little practice, you can use a garden fork to help your garden grow and thrive!