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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

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.

Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.