Khan Academy Static

Is it a coincidence that Africa and South America could fit like puzzle pieces? Why do earthquakes happen where they do? What about volcanoes and mountains? Are all of these ideas linked? Yes, they are. This tutorial on plate-tectonics explains how and why the continents have shifted over time. In the process, we also explore the structure of the Earth, all the way down to the core.

10673_Plates_moving_due_to_convection_in_mantle.html

10676_Compositional_and_mechanical_layers_of_the_earth.html

10672_Plate_tectonics_Geological_features_of_convergent_plate_boundaries.html

10669_Structure_of_the_earth.html

10670_Plate_tectonics_Evidence_of_plate_movement.html

10668_Plate_tectonics_Difference_between_crust_and_lithosphere.html

10671_Plate_tectonics_Geological_features_of_divergent_plate_boundaries.html

10675_Pangaea.html

10677_How_we_know_about_the_earth_s_core.html

10674_Hawaiian_islands_formation.html