100+ Fossil record show PowerPoint (PPT) Presentations, Fossil record show PPTs

Fossil record show - PowerPoint PPT Presentation

The Fossil Record

The Fossil Record. Know that fossils provide evidence of how life on Earth has developed from simple life forms and be able to suggest reasons why scientists cannot be certain how life began

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452 views • 9 slides

Looking back in time

Looking back in time. The rocks at the top of the Grand Canyon, Arizona, are 250 million years old. Those at the bottom are 2 billion years old. Why did the rocks form in layers?. Why do so many people want a closer look at them?. What are fossils?.

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248 views • 8 slides

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Fossil record show - PowerPoint PPT Presentation

The Fossil Record

Looking back in time