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In this activity, learners explore what happens when polarized white light passes through a sugar solution.

Make a big canvas of iridescent color with pvc pipe! In this Exploratorium Science Snack, you'll need to cut and assemble some PVC pipe, but the pay-off, the soap-bubble canvas, is big.

In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.