Kristen pulled out a small clump of steel wool, and set it on a piece of paper in a tin pie pan. When she touched the end of the 9-volt battery to the steel wool, it ignited (just a little) . . .
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Kristen pulled out a small clump of steel wool, and set it on a piece of paper in a tin pie pan. When she touched the end of the 9-volt battery to the steel wool, it ignited (just a little) . . . |
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