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Showing 1-4 of 4 Resources
  • EarthViewer

    EarthViewer

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    Download the accompanying student worksheet under "Downloads." What did Earth look like 250 million years ago? Or 1 billion years ago? Or 4.5 billion years ago? EarthViewer is an interactive tool that allows you to explore the science of Earth's deep history.

  • Mass Extinctions Interactive

    Mass Extinctions Interactive

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    Discover the environmental factors that caused the five big mass extinctions in Earth’s history and which species they impacted.

  • Great Transitions Interactive

    Great Transitions Interactive

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    The fossils of transitional creatures were key evidence for Darwin’s evolutionary theory, but none had been found when he published On the Origin of Species. Now, there are many examples of such fossils, which clearly show that big evolutionary leaps consist of many smaller steps.

  • Deep History of Life on Earth

    Deep History of Life on Earth

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    The record of life on Earth stretches over 3 billion years. Deep time and Earth history are keys to understanding the present.