This video segment adapted from A Science Odyssey uses animation and archival footage to provide an overview of the theory of plate tectonics. Early evidence showing striking similarities between regions on opposite sides of vast oceans suggested that in Earth's distant past what are now separate continents may once have been connected. However, this evidence said nothing about how the continents could have moved to their present positions.
This video is available in both English and Spanish audio, along with corresponding closed captions.
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