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Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.

In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.

In this activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color.

In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

In this activity on page 10 of the PDF, learners develop an experiment to answer the following question: "How much water can the hydrogel in a baby diaper hold?" Use this activity to explore polymers,

In two separate bags, learners mix water with Epsom salts and detergent.

In this activity, learners model how the Moon's volcanic period reshaped its earlier features.