Posts Tagged With: silly putty experiment

Iron Man 2: Sammy The Silly (Putty) Seal

If you’re following along in our Iron Man series, you know that we still have most of the 5 pound bag of iron oxide powder (Fe3O4, or magnetite) we purchased off of Amazon.  It turns out that 5 pounds of iron oxide powder goes a long way. And it turns out that iron oxide powder &hellip Continue reading »

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