Handout
US Department of Agriculture

The Science of Color in Autumn Leaves

For Students 9th - 10th
Coupled with a beautiful photo gallery, the National Arboretum sets out to explain the science behind why leaves of deciduous trees change their color in the autumn months. While temperature effects the colors, learn here what happens in...
Handout
Other

Suny E Sf: The Splendor of Autumn

For Students 9th - 10th
This brief site describes the changes that take place within leaves and the environment which result in the colors we observe in Autumn.
Handout
Environmental Education for Kids

Eek!: Be the Change: Yard Care

For Students 3rd - 5th
Follow the suggestions here for a fall leaf cleanup in your yard.
Unit Plan
TED Talks

Ted: Ted Ed: What Is Chromatography?

For Students 9th - 10th
Find out why leaves change color in the fall, and learn how to do paper chromatography to separate the pigments found in a leaf. [4:24]
Activity
Exploratorium

Exploratorium: Science Snacks: Avalanche

For Students 9th - 10th
In this activity, pour a salt-sand mixture into a CD case to notice how the particles separate themselves. Observe the effect known as granular convection as the smaller sand particles fall beneath the larger particles leaving a layered...
Article
University Corporation for Atmospheric Research

Ucar: Icy Winter Weather

For Students 9th - 10th
When meteorologists forecast a winter storm one of the important predictions they make is the type, or types, of precipitation that are likely to fall. Will freezing rain cause an ice storm? Will ice pellets called sleet leave the ground...

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