OLogy: Start a Rock Collection

Every rock has a story to tell. Learn how to create a collection that rocks!

Rocks hold evidence that helps us figure out how mountains formed, where glaciers once flowed over the United States, or what kinds of plants and animals lived on the Earth. Rocks show us how the Earth has changed and how it’s still changing, even today! They give us important clues about the Earth’s history.

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OLogy (American Museum of Natural History)

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Tutorial

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Description of PDF

Printout of My Rock Chart.