Aristotle's Thanksgiving on the Web Fall Colors

Fall is a time of beauty
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Many people enjoy traveling along rural routes to see the changing colors. Do you know why the leaves change color? Most of the leaves that we see in the spring and summer are green because the food-making part of the leaf, the chlorophyll, is active. Leaves also have orange and yellow pigments to create the multi-colored foliage that we see in the fall. The carotenes and xanthophyll that give the orange color to a carrot also contribute to the pigment of trees. Most of the year these colors are masked by great amounts of green coloring, but changes in temperature and length of daylight causes leaves to stop their food-making process in the fall. The chlorophyll is broken down, the green color disappears, and the yellow-orange colors become visible. Other chemical changes may also occur, which form additional colors through the development of red anthocyanin pigments. Some mixtures make the reddish and purplish fall colors of trees, such as dogwoods and sumacs, while other mixtures give the sugar maple its beautiful orange.

Online fall colors

To check out some beautiful fall colors across the United States, visit these websites:

Thanksgiving travel

If you'll be traveling during the Thanksgiving holidays, you might want to check put these fall color update sites to find out where the best colors will be!

We recommend the following highways:

  • North Cascades Highway in Washington state
  • Highway 13 in Wisconsin
  • Blue Ridge Parkway in North Carolina
  • Scenic Highway 7 in Arkansas


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