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        Volcanoes | Science Trek

        This video segment from IdahoPTV's Science Trek explains where and how volcanoes form and the role magma plays in their formation. Descriptions and examples of the 3 kinds of volcanoes are gives. Tectonic plates and hot spots are also discussed.

        To learn more about Volcanoes visit the Science Trek companion website here: Volcanoes.

        Volcanoes: Video Short

        Short overview of volcanoes, tectonic plates and the different types of lava.

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        Volcanoes: Web Show

        Volcanoes are openings in the earth’s crust. Magma pushes up to the surface and lava flows out. Volcanoes have changed our world. On this Science Trek: The Web Show, host Joan Cartan-Hansen and her guests answer students’ questions about volcanoes.

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        Volcanoes: Full show

        Scientists study volcanoes to learn more about the Earth and to protect the millions of people who live near these fascinating geological features. On this Science Trek, host Joan Cartan-Hansen and her guests answer students’ questions about volcanoes.

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