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All Spun Up: A Look At Properties Of Rotation
Why do hardboiled eggs spin better than raw ones? How can you engineer faster race car wheels? The key is understanding rotational inertia.
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Physics Secrets for Hula Hooping
In this activity from Science Buddies, kids will create their own hula hoops and investigate how the hoops’ masses affect how they spin. Which do you think will spin better, a heavy hoop or a lighter one?
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Glowing in the Dark: Testing Phosphorescence
Learn about phosphorescence and how certain materials can absorb and store energy from a light source. Then discover which type of light gets the brightest glow from a glow-in-the-dark star.
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Illuminating Luminescence
Compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.