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University of Waikato: Science Learning Hub: Absolute Dating

For Students 9th - 10th
Explains what absolute dating is as compared to relative dating and how they can work together. The characteristics of several different radiometric methods are compared. Includes three short videos and an interactive where students...
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Lesson Plan
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Milton J. Rubenstein Museum: Determining the Age of Rocks and Fossils [Pdf]

For Teachers 9th - 10th
This set of activities from the Milton J. Rubenstein Museum of Science & Technology has students investigating how relative dating and absolute dating methods are used to determine the age of rocks and fossils.
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Article
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Utah Geological Survey: How Do Geologists Know How Old a Rock Is?

For Students 9th - 10th
Geologists generally know the age of a rock by determining the age of the group of rocks, or formation, that it is found in. The age of formations is marked on a geologic calendar known as the geologic time scale. Development of the...