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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 activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.

As a long-term project, you can rear monarch butterflies at home or in a classroom.

In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

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