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Handout
Other

Time Scavengers: Principles of Geology

For Students 9th - 10th
This site was created by two geoscientists. They explain the Principles of Geology. These are general rules, or laws, that are used to determine how rocks were created and how they changed through time. They are also used to determine...
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PPT
Other

Western Oregon University: Earth System Science: Geologic Time [Pdf]

For Students 9th - 10th
An 81-page slideshow that looks at the principles of geology with respect to relative dating, at different concepts describing geological processes, at absolute age and radiometric dating, at the eons and eras in the geologic time scale,...