Dr. John Benson of Willmar, a chemistry instructor at Ridgewater College, conducts an experiment Thursday for seventh-grade students at Willmar Middle School. Tribune photo by Ron Adams
Willmar Middle School students learn that chemistry can be fun
Drop a can of Coke into a cylinder of water, and you can watch it sink gently to the bottom.
Drop a can of Diet Coke in, and it will float at the top. It won’t even sink if it’s pushed down. The difference?
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