A combination of potassium iodide, dish soap, food coloring and hydrogen peroxide combined just right sets up like “Elephant toothpaste” according to 8th graders Darien Smith, right, and Max Alvarez, left. Photo by Chuck Vandenberg/PCC
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In photo at left, Hayden Wolfe, 7th grade, checks the RPMs of his battery when charged with different magnets. Photo by Chuck Vandenberg/PCC
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