Plate tectonics is the theory that Earth's outer layer is made up of plates, which have moved throughout Earth's history. The theory explains the how and why behind mountains, volcanoes ...

The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways ...

Plate tectonics had arranged the world's continents into a single massive landmasses: Pangaea. Today I attempt to use my knowledge of geography to create a basic map of what this land might have ...