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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.

Historically, sea floor mapping (bathymetry) was done by soundings.

In this activity, learners make optical fibers out of strips of gelatin.

In this activity, learners explore the different heating properties of soil and water.

In this activity, learners investigate variations in human traits. This allows learners' natural curiosity about their identity to draw them into the study of heredity.

In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

In this activity, learners explore how engineers use scales and measures when designing a manufacturing process to ensure that final products are uniform in weight or count.

In this engineering activity, learners design their own board games.

This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).