Day 155: Conservation of Matter


IS I students investigated the Law of Conservation of Matter by reacting vinegar and baking soda and attempting to contain the products (that included carbon dioxide gas). Good way to show them that their results will be less than perfect (delay in putting balloon on bottle, diffusion of gas through balloon). The diffusion was interesting for them to see as the mass continued to drop as the bottle ad balloon sat on the electronic scale. Hard for them to believe that balloons are full of holes!


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