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Chemistry LibreTexts

Geologic Time 101

  • Page ID

    To Do To Answer
    Read about the age of the Earth
    • Where have the oldest rocks on Earth been found?
    • How are the ages of rocks measured?

    Watch the brief video on the Geologic Time Scale

    Optional: This video is much longer but has lots of cool effects where you can see the landscape and creatures that existed millions of years ago.

    • Note the major events in each era.