EXPLORE: Plate Boundaries
1 Divergent, Convergent, and Transform Plate Boundaries
There are 3 major types of plate boundaries: divergent, convergent, and transform. The following screencast explains what happens at each of these plate boundaries, as well as the landforms and features associated with each.
Sources: http://wikimediafoundation.org/wiki/File:Plates_tect2_en.svg