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—an everyday item such as a plastic bag, a milk carton, or a nail. In a fast-paced atmosphere where showmanship and creativity reign, science teachers are given ten minutes to concoct a science activity that can be used in the classroom.