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Soap bubbles float on a cushion of carbon dioxide gas.
As René Descartes (almost) said, "I sink, therefore I am."
Make a reverse Cartesian diver.
Show that gas is produced during photosynthesis.
Have a gas with the conservation of mass.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Attribution: Exploratorium Teacher Institute
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