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00:47:04
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. This week: plastic water bottles.

1:13:04
Watch as Exploratorium staff and local teachers compete for the title of Iron Science Teacher. Each contestant has 10 minutes to make a science lesson out of a science ingredient. This is a Halloween edition of Iron Science Teacher, and today's secret ingredient is: Bones!

1:05:23
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week's secret ingredient-water!