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Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days.

In this activity, learners extract DNA from wheat germ. Use this activity to introduce learners to DNA, biotechnology and genetic engineering.

In this activity, learners mix milk, vinegar, baking soda, and water to create sticky glue. Use this activity to explain how engineers develop and evaluate new materials and products.

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

No glue is needed for learners of any age to become marshmallow architects or engineers.

In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.