Scientific American Article:
June 16, 2002 go Advanced Search TODAY'S NEWS EXPLORE ASK THE EXPERTS QUICK POLL FEATURE ARTICLES EXHIBITS INTERVIEWS TECHBIZ NANOTECHNOLOGY CURRENT ISSUE UPCOMING ISSUE PAST ISSUES ASK THE EXPERTS Current Questions What is synesthesia Why do clouds float when they have tons of water in them How do GPS devices work What causes leg cramps Have a Question Send it in. Questions By Subject: ...
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Chemical of the Week -- The Chemistry of Autumn Colors
THE CHEMISTRY OF AUTUMN COLORS Every autumn across the Northern Hemisphere, diminishing daylight hours and falling temperatures induce trees to prepare for winter. In these preparations, they shed billions of tons of leaves. In certain regions, such as our own, the shedding of leaves is preceded by a spectacular color show. Formerly green leaves turn to brilliant shades of yellow, orange, and ...
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Why Leaves Change Color
State University of New York College of Environmental Science & Forestry ...
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WHY LEAVES CHANGE COLOR
CHANGING COLOR Every year at this time we revel in the beauty of the trees, knowing well that it is only a fleeting pleasure. Before long the leaves will flutter away from their summer home and become a part of the rich carpet that covers the forest floor. Many people suppose that Jack Frost is responsible for the color change, but we now know that change in coloring is the result of chemical ...
 www.ces.ncsu.edu/nreos/forest/topics/leafco~1.html reviews
STORMFAX Autumn Leaves
Autumn weather conditions favoring the most brilliant colors are warm sunny days and cool, but not freezing, nights.
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