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The Science Machine: Hooray!
 

Hooray!

URL:  http://littleshop.physics.colostate.edu/onlineexperiments/Hooray.html
Levels: Grades 2-6
Topics: eyes, vision, biology

Description: No materials are required for this online experiment from the Little Shop of Physics -- just endurance. Stare at the flag of cyan, black, and yellow for thirty seconds. Then look at a white surface and view the "afterimage" of an American flag in its proper colors. The experiment is an easy way to explore how the eyes function.

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Article by Cara Bafile
Education World®
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