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Subtopic: Half-lives

Change grade range

Resource	Grade Level	Media Type
The Dating Game: Radioactive Carbon In this media-rich essay from the NOVA Web site, learn about the atomic structure of radioactive carbon and how it can be used to determine the age of organic remains, such as bones and teeth.	6-12	Shockwave Document
Radiometric Dating In this video segment from A Science Odyssey, scientists explain how Earth's age was determined by examining the radioactive rocks in Earth's crust.	6-12	QuickTime Video