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In this activity, learners explore light, color and rainbows by making their own rainbow glasses.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes