Description: Several types of dry breakfast cereal contain "reduced iron" as one of their ingredients. Putting some of this cereal in water and stirring with a white teflon-coated stirring bar results in a coating of iron filings on the ends of the bar.

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Source: Institute of Chemical Eduation, Fun With Chemistry; A Guidebook of K-12 Activities. vol 1

Year or vol: 1991 page: 49