Using honey, light corn syrup, dish soap, vegetable oil, water, rubbing alcohol, a tall glass or clear plastic vase, small drinking glass, food baster, glass marble, a grape, paper clip, food coloring (optional), 1/4 c measuring cup, and various other small objects, children will build a six-layer density column and watch as some objects don’t fall all the way to the bottom of the vase when dropped through the layers. Children will learn that liquids can have different densities and will also learn the density rule for sinking and floating.



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