

The following are key concepts that you should be familiar with after reading and studying Chapter 15: Plate Tectonics: A Scientific Revolution Unfolds. To evaluate your understanding of any of the key concepts, select the corresponding Concept Quiz from the Selection Bar and answer the questions provided.
- Wegeners hypothesis of continental drift and the breakup of a former supercontinent (Pangaea).
- Paleomagnetism and Hess hypothesis of seafloor spreading.
- Supporting evidence for the plate tectonics model effective confirmation of Wegener and Hess.
- Fundamental components of the plate tectonics model.
- Components and processes of divergent plate margins.
- Components and processes of convergent plate margins.
- Components and processes of transform plate margins.
- Driving mechanisms for plate tectonics: Mantle convection models.