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2:19:31
Visit a chocolate factory and learn how to make chocolate candles! Host Sedge Thomson talks with chocolatiers, chefs, and scientists about the history and science of this intoxicating food.

0:43:03
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers have ten minutes to create a science activity. This week’s “secret” ingredient: coins!