Chemistry of Fall Colors

Fall Leaf

In autumn, as the green color of leaves fades, other vibrant colors become the main attraction. What’s the chemistry that makes it happen?

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  • Fall Colors Arriving
    You don’t need to be close up to see autumn arrive. Check out this satellite view from space.
  • The Science Behind Fall Foliage
    If a tree is a factory, what are the leaves? Use this explanation to understand the science in a different way.
  • Leaf Peep for Science
    Old photos from citizen scientists can hold the key for environmental researchers.
  • Science of Fall Colors
    The Forest Service knows trees. Get the scoop on connections between trees, their leaf colors, weather, and more. 
  • A Rainbow of Fall Leaves
    This rainbow has different colors than you know, but just as beautiful.

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(all sites accessed August 2021)