Farmers keep many different things in barns. A barn is a house for farm animals. It is also a place to keep tools.
Barns are good for storing the food farmers grow.
They are also places for doing work, like milking cows. You can build your own barn and fill it in with all the different things that go in a barn. Find a big shoe box to be your barn. Draw squares for windows and doors. Ask a grown-up to help cut them out.