The 4 Tectonic Plate Boundaries and the Hazards they Create
8:31
Earthquakes: What, How and Why?
12:44
Understanding Plate Tectonics
6:21
The Moving Layers of Earth and Plate Tectonics
43:39
33. How to Identify Rocks
6:54
What Are Volcanoes and How Are They Formed?
10:30
The World Before Plate Tectonics
10:58
The Plate Tectonics Revolution: Crash Course Geography #19
12:44