So fifth graders determined that even though they couldn't the sugar or the salt when they mixed it with water, it was still there. They proved that no one took out either chemical, and that letting one of them sit out overnight gave proof that it was still there. But is there another way to prove this phenomenon, that sugar and salt are still in the water, even though we can't see them?
Using a two-pan balance (and a digital scale to see how accurate they were!), fifth graders designed an experiment to see if the mass of one of the chemicals (i.e. salt) added to the mass of another chemical (i.e. water) would equal the mass of both together. If the mass of the two combined equaled the mass of each of the two seperately, this would give more evidence that even if we physically couldn't see them, that they must be there. Great work fifth graders!
Using a two-pan balance (and a digital scale to see how accurate they were!), fifth graders designed an experiment to see if the mass of one of the chemicals (i.e. salt) added to the mass of another chemical (i.e. water) would equal the mass of both together. If the mass of the two combined equaled the mass of each of the two seperately, this would give more evidence that even if we physically couldn't see them, that they must be there. Great work fifth graders!
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