Curated OER
Layers of Rock
Juvenile geologists drill clear plastic straws down into a playdough sedimentary rock model, pulling out sample rock cores. As they analyze their cores, they apply the law of superposition and discover that originally horizontal layers...
![Prince George's Community College: Reading the Rock Record [Pdf] Activity](http://content.lessonplanet.com/resources/thumbnails/410006/large/bwluav9tywdpy2symdiwmduymc0xotawms0xn3i0zzvplmpwzw.jpg?1589984663 "Prince George's Community College: Reading the Rock Record [Pdf] Activity")
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Prince George's Community College: Reading the Rock Record [Pdf]
This is an in-depth activity where students create a rock layer formation using different colors of playdough and investigate the types of folds and rock formations that might occur. They take core samples through anticlines and...
Curated OER
National Park Service: Grand Canyon Geology
Extensive information about the geology of the Grand Canyon. Looks at some principles of geology evident there, forces that have shaped its geological features, how its valleys and canyons were formed, the characteristics of the Colorado...
![Western Oregon University: Earth System Science: Geologic Time [Pdf] PPT](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Western Oregon University: Earth System Science: Geologic Time [Pdf] PPT")
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Western Oregon University: Earth System Science: Geologic Time [Pdf]
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,...