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In this activity, learners develop spatial reasoning skills as they blow bubbles and observe what happens when the bubbles connect.

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

In this quick activity (page 1 of PDF under SciGirls Activity: Exercise and Memory), learners will investigate what happens to bubble gum when it is chewed for 5-10 minutes.

Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.