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In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

$1 - $5 per group Ages 8 - adult 5 to 10 minutes
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In this activity, learners explore why they can see colors in bubbles and why they change.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes