Type:

Other

Description:

This page has an illustration of the 4.5 billion year old Earth's time scale shown as a spiral with pictorial representations of both marine and terrestrial life. The text discusses how the age of the Earth is determined. The illustration is from the USGS General Interest Publication, Geologic Time by William L. Newman.

Subjects:

    Education Levels:

    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 4
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    • Grade 10

    Keywords:

    Space Science,Informal Education,Astronomy,NSDL,Chemistry,Geology,oai:nsdl.org:2200/20061003225937508T,NSDL_SetSpec_dlese.org,Space sciences,General Public,Physical sciences,Geologic time,Physics,Geoscience,Earth science

    Language:

    English

    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike

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