Presentation on theme: "Theory of Plate Tectonics"— Presentation transcript:
1 Theory of Plate Tectonics 1) What are the types of plate boundaries and where are they located?2) What features are found at each plate boundary.3) How do the plates move?
2 Day 1: What is Plate Tectonics The Earth’s crust and upper mantle are broken into several movable sections called platesUnifying Theory of Geology.Explains why we have mountains, volcanoes, earthquakes, the rock cycle etc.
22 Day 2: Review Questions...What are the three types of plate boundaries?Draw arrows to show what direction do plates go for each?List two or three major features or events that occur at each boundary?
24 Convection CurrentsThe Earth’s solid Lithosphere (the crust and upper part of the mantle) floats like a raft on the partially melted athenosphere.Fluid rock in the athenosphere moves toward the surface, cools, then sinks again.Creates convection currents beneath the plates that cause the plates to move like a conveyor belt..
25 Convection currents in the athenosphere cause the plates to move Convection currents in the athenosphere cause the plates to move. Notice that divergent boundaries occur where hot material is rising and convergent boundaries occur where hot material is sinking.Notice diver