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Super Gelatin
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Can gelatin (like Jell-O ®) change the speed of light?
Spots, Lines and Lasers
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Learners shine the light of a laser pointer through sheets of fabric that all have a different number of threads per inch.
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.
Liquid Crystal Thermometers
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In this activity, learners explore liquid crystal thermometers to observe how heat flows by conduction, convection, radiation, and evaporation.
Light and Sound
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.