This lesson explains how energy can be transferred from one form to another, but is always conserved. It is 3 of 4 in the series titled "Conservation of Energy."

Video lecture on four basic types of plate tectonic boundaries: divergent (spreading), transform (strike-slip), and convergent (subduction and continental collision) types of plate boundaries. [2:03]

Video lecture on divergent, transform, and convergent types of plate boundaries. [1:30]