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    Twin Cities Public Television
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    In this quick SciGirls activity (page 1 of the PDF), learners will be introduced to the concept of thermal conductivity. A metal knife and a plastic knife are each poked into slices of cold butter...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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    Colorado State University
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    This is a series of three quick science activities to do with a spoon, knife, and fork. In the first two activities, learners use the flatware to explore optics, mirrors, reflection, and distortion...

    free Ages 4 - 14 5 to 10 minutes