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Surface Area
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In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio.

The Electric Squeeze
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In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.

Making a Battery from a Potato
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In this electrochemistry activity, young learners and adult helpers create a battery from a potato to run a clock.

Mystery Shapes
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In this activity, learners describe an object they can’t see. After someone picks outs a few mystery objects and places them in a pillowcase, learners will investigate using only their hands.