Fall colored leaves. Deciduous trees lose their leaves in the fall after they dry out and turn brown, yellow or red. Children love jumping in piles of leaves during the fall. Rake them up in a large pile, then watch the children in the neighborhood show up and jump into them. People travel from all over the world to the places that have large amounts of deciduous trees. The colors of fall can be really spectacular with vibrant pinks, yellows, oranges and reds.