Why do leaves change color in the fall?

Why are leaves green? Why don’t leaves turn all of the colors of the rainbow? In this episode of But Why, we’re talking about fall leaves, and how trees go from green to fiery red, orange and yellow.

But Why is a show led by you, kids!

You ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end of the world.