Why Do Autumn Leaves Change Color? - Instant Egghead #51

Scientific American editor Mark Fischetti explains how the leaves of deciduous trees perform their annual chameleon act, changing from various shades of green to hues of bronze, orange and brilliant red.

More to explore:

Bring Science Home: Experiment on autumn leaves at home
http://www.scientificamerican.com/art...

How do super-tall trees get water from their roots to their leaves?
http://www.scientificamerican.com/art...

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