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Water Sphere Lens

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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.
$1 - $5 per group Ages 8 - 14 10 to 30 minutes

Cold Metal

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In this activity, learners discover that our hands are not reliable thermometers.
$1 - $5 per student Ages 8 - 14 10 to 30 minutes