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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

In this activity, learners explore how polarizing sunglasses can help diminish road glare.

Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.