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360Science™: Nuclear Energy


In this lab students are investigating potassium-40. Potassium, one of the most abundant minerals on Earth, is present. Students use dominos to simulate a chain reaction in a nuclear reactor. They model both a critical and a supercritical process to better understand why uranium-238 is used as nuclear reactor fuel as opposed to the much more common uranium-235.


  • Nuclear fission
  • Chain reaction
  • Nuclear energy