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Activity
Exploratorium

Exploratorium: Black Magic

For Students K - 1st
A great and easy-to-do activity where students separate the colors in a black marker and develop an understanding that black is a composite of other colors.
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Website
University Corporation for Atmospheric Research

Ucar: About Rainbows

For Students 9th - 10th
This site from the University Corporation of Atmospheric Research provides an illustrated article about the phenomenon of rainbows.
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Website
Frostburg State University

General Chemistry Online: Ten Signs of Chemical Change

For Students 9th - 10th
Resource provides the ten signs that tell when a chemical change has occured. Each sign has a detailed explanation.