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Nature Journals
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In this activity, learners construct a home-made journal with simple, everyday materials.
How Thick is Your Hair?
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In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair.
Strengthen a Paper Bridge
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In this quick activity (page 1 of the PDF under SciGirls Activity: Tug O' War), learners will test how many pennies a flat paper index card bridging the gap between two stacks of books is able to supp