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Inverse Square Law
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In this math activity related to light, learners explore why a light, such as a candle or a streetlight, looks dimmer the farther away from it we get.
Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.
Making Naked Eggs: Eggs Without Shells
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This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.
On the Fringe (formerly Bridge Light)
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.
Whirling Watcher: Make a Stroboscope
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In this activity, learners make a stroboscope--a spinning disk with slits around the edge that you look through.
Hand Battery
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In this activity about chemistry and electricity, learners form a battery by placing their hands onto plates of different metals.
Pixel Tube
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In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.
Oil Spot Photometer
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In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.
Benham's Disk
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In this optics activity, learners discover that when they rotate a special black and white pattern called a Benham's Disk, it produces the illusion of colored rings.