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Is pure water colorless?
Send waves down a spring to watch them travel and interact.
Stare at one color—but see another.
Discover why the sky is blue and the sunset is red.
Create giant bubbles!
Turn an old CD into a spectroscope to analyze light.
Discover why your favorite cat videos don't leak out of optical fibers.
Demonstrate diffraction using a candle and two pencils.
You can make glass objects disappear.
The Doppler effect causes the “neeeeeoowwm” sound of cars.
Viscous liquids create a mesmerizing light display.
Make a record player with a pencil, pin, and paper.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Attribution: Exploratorium Teacher Institute
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