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Construct a simple battery that can power a light.
Find order in well-mixed chaos.
Etch patterns on metal using saltwater and electricity.
Construct a simple hydrometer to compare the densities of solutions.
This density column always returns to its original three layers.
Make a simple battery that will light an LED.
Explore how different deodorants affect the bacteria in your armpit.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Attribution: Exploratorium Teacher Institute
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