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Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image.

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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In this quick activity, Dracula has a hole in his house and learners help solve the problem by using a mirror and protractor to reflect incoming light out of his house.

free Ages 8 - 18 Under 5 minutes