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History of the Earth |
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E110 History
of the Earth
Our Popular
Eras of Life Geological Time Scale presents
the complex life on Earth as it has evolved over
the past 365 million years. This chart "zooms
out" to show the big picture. It condenses the
4.6 billion years that the Earth has been around
to a 24" x 36" poster.
Geologists divide the history of the earth into
four eons. Each is represented by a strip of
illustrations and captions prefaced by an
introduction. Our planet began as a sphere of
molten metal. Heavier ores sunk to the center,
resulting in gravity. As Earth cooled, its crust
was formed. Other topics include the creation of
the moon, the appearance of various atmospheres,
the formation of continents, continental drift,
snowball Earth, and the development of life. The
third through fifth pictures on the bottom row
reflect the period covered by Eras of Life.
The last picture shows the near future - the
results of humans destroying the environment |
| Laminated |
No. E110L |
$18.95 |
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| Non-Laminated |
No. E110F |
$9.95 |
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