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The Electric Squeeze
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In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.
Inkjet Printer
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In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.
Shake and Make: Charge Recognition
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In this activity (page 10), learners explore how molecules self-assemble according to forces of attraction and repulsion.
Exploring Size: Ball Sorter
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In this activity, learners use sieves with different-sized holes to sort balls by size.