Observe the dynamic behavior of a lava lake that provides a tangible analogy to plate motions at tectonic scale in this video courtesy of Dr. Juerg Alean. Watch as the surface crust atop the molten layer of magma flows and transforms over a time scale of a few hours.
To view the Background Essay and Teaching Tips for this video, go to Support Materials below. This resource was developed through WGBH’s Bringing the Universe to America’s Classrooms project, in collaboration with NASA. Click here for the full collection of resources.