Day 58: Conservation of Mass

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IS I students placed Alka-Seltzer tablets in water and massed the reactants and then the products. They got to see production of a gas and feel the heat content change as well as evidence of a chemical reaction. Of course there was no a difference and I spent time helping them understand why there may have been a slight loss of mass (capping the bottle, placing the balloon on top). They got great results and wanted to try it with more water and more tablet to see if the balloon would inflate more. Love that.

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