Fossils & The Geologic Time Scale

This Fossils & The Geologic Time Scale presentation also includes:

Here is a straighforward and visually appealing presentation for your middle school earth science pupils. It introduces three types of fossils, relative vs. absolute dating, and the different eras of Earth's history. The eras are further divided into periods, and the organisms said to have appeared during each period are listed. On a large spiraling diagram, each period is identified. 

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