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Unit B: Plate Tectonics

$The Layered Earth: Unit B. Plate Tectonics. Lesson Key Concepts. B1: Continental Drift. How does the scientific process deal with new or conflicting information? Key Concepts. Science is a dynamic process, whereby new knowledge brings new and better understanding. The Earth's crust is constantly in motion. B2: Plate Tectonics. Why is plate tectonics a better explanation for the movement of the continents? Key Concepts. The lithosphere is broken into plates that are constantly in motion. Plate tectonics successfully accounts for the observed motion of the continents. Interacting plate boundaries are distinguished by three types of movement. B3: Folds, Faults and Mountain Building. How does plate movement help shape the Earth's surface? Key Concepts. Plate motions and boundary interactions produce forces that can cause rock to deform and fracture. Most deformation can be explained by plate movement.$