Explore the theories of continental drift, plate tectonics, and global expansion. See how scientists explain basic facts about the earth, such as the placement and motion of the continents; discover the science of such theories and the evidence for and against them. Produced by an Australian publisher.

Originally released by Video Education America (VEA), 2006. Streaming video file encoded with permission for digital streaming by Infobase on May 07, 2015.

Galileo and a Heliocentric View (3:42); --Continental Drift Theory (4:50); -- Plate Tectonic Theory (7:24); -- Global Expansion Theory (4:47); -- Motion of the Continents (8:00); .