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Iowa Public Television

 

Our Earth

How Old Is It? (#101)

Geology as a science began with the Industrial Revolution in England. Rock strata were studied and compared and an amazing conclusion was drawn--our Earth is unbelievably old.

Closed Captioning

Education Record Rights: Recording/duplication allowed as long as IPTV broadcasts the series.

Program Description: Presented by young scientists, OUR EARTH is a new series that looks at the science of geology -- fossils, the Earth's core, tectonic forces, and the impact of the sun, wind and water. It also discusses why we need to understand geology.

All Upcoming Episodes

  • How Old Is It? (#101)

    Geology as a science began with the Industrial Revolution in England. Rock strata were studied and compared and an amazing conclusion was drawn--our Earth is unbelievably old. Closed Captioning

  • Fossils (#102)

    A fossil is a trace of a living thing left in a rock. Fossils offer a three-part challenge. First is to reconstruct the organism itself, then to reconstruct the world it lived in, then to understand its place in time and evolution. Closed Captioning

  • The Fires Below (#103)

    The interior of the Earth is very hot. Clues leave us to believe there is a metallic core surrounded by a rocky mantle. Huge, slow convection currents rise up, often resulting in earthquakes and volcanoes. Closed Captioning

  • Pushing and Shoving (#104)

    Tectonic forces and their end products are discussed. Closed Captioning

  • Wear and Tear (#105)

    The forces of the sun, wind and water change the face of the Earth. Closed Captioning

  • Rock Recipes (#106)

    Igneous, sedimentary and metamorphic rocks are discussed. Closed Captioning

  • Who Needs Geology? (#107)

    This program discusses the importance of geology and why we need to understand many of its basic findings. Closed Captioning

Past Episodes

These episodes of Our Earth aired in the last few months on Iowa Public Television.

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