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This week's secret ingredient was leaves! This week's secret ingredient was triangles! Cheer on the competitors in this zany science cook-off. Teachers compete before a live audience at the Exploratorium for the revered title, "Iron Science Teacher." This week's secret ingredient was lightbulbs! Cheer on the competitors in this zany science cook-off. Teachers compete before a live audience at the Exploratorium for the revered title, "Iron Science Teacher." Cheer on the competitors in this zany science cook-off. Teachers compete before a live audience at the Exploratorium for the revered title, "Iron Science Teacher." The Exploratorium's Iron Science Teacher competition showcases science teachers as they devise demonstrations around a particular "secret" ingredient—and today's secret ingredient was oil! Sarah Santos and Jeremy Rector demonstrate two ways to make ferrofluid during a live Webcast of the Exploratorium's Iron Science Teacher.
Watch the whole episode (type "oil" in the search box), along with many other episodes of Iron Science Teacher at www.exploratorium.edu/tv Halloween Special Edition! In this zany competition teachers have ten minutes to create a science activity from a special Halloween secret ingredient... bats! In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: eye care products! In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: dental hygiene products! In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: hair care products! In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: wire! In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: candles.