A plate boundary is the place where one or more plates meet. There are four types of plate boundaries: constructive, destructive, conservative and collision. Plate tectonics is a scientific theory which describes the large scale motions of Earth's lithosphere.
Continental Drift : the hypothesis that states that the continents once formed a singe landmass broke up and drifted to their present locations.
Pangaea : the super continent that formed 300 million years ago and that brgan to break up 250 million years ago.
Lithosphere : the solid outer layer of earth that consists of the crust and the rigid upper part of the mantle.