10/10/2026
The leaves of a tree act like tiny factories where the tree makes most of its food. This food‑making process is called photosynthesis. A chemical in the leaves called chlorophyll is essential to photosynthesis, and it’s also what gives leaves their green color. Leaves also contain yellow and orange pigments, but for most of the year these colors are hidden beneath chlorophyll’s strong green.
If you're like me, every Fall I look forward to the beautiful colors of the leaves as they change color to yellow, orange and red. But do you ever ask yourself, "Why do leaves change color?"