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Create clouds in a bottle by rapidly expanding the air.
Make a conductivity meter and let your electrolytes shine.
Objects change size when heated or cooled.
Use agar cubes to investigate how size impacts diffusion.
Make your own heat waves in an aquarium.
Use your skin and different metals to create a battery.
Construct a simple hydrometer to compare the densities of solutions.
Touch, dance, or walk on the ooze known as ooblek.