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To understand how this process works, you need to know a little bit about atoms and isotopes.
Often, any one atom has several different forms, called isotopes.
Related teaching materials and games are also linked on the website.
Montana's Office of Public Education offers a lesson plan which teaches students about radiometric dating using information provided online about American Indian bison bones and prehistoric kill sites.
The plan guides students through the radiometric analysis of prehistoric evidence, radiometric terminology and half-lives of carbon 14.
Instructions for in-classroom half-life graphing games are also included.
The melting of the rock and releasing of any argon set the potassium-argon clock to zero.
The University of California's Museum of Paleontology offers a lesson plan for radiometric dating, which includes sequencing activities and card games.This game can be downloaded for play on computers in classrooms, or it can be played online.