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In this optics activity, learners discover basic lens-making techniques by using a tennis ball to make a lens out of ice.

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 how engineers use scales and measures when designing a manufacturing process to ensure that final products are uniform in weight or count.

In this activity, learners demonstrate the effects of cold-working (strain-hardening) and annealing. Learners discover that these processes change the load that a wire can support.

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).