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6.2 Plate Tectonics and Boundary Types Notes: Plate Boundaries Name: _______________ ESSENTIAL QUESTION: Part 3: Re-read the highlighted information in your notes. Construct quiz questions using this information. Write the questions next to the paragraph where the answers can be found. Plate Tectonics Basics Ø The Earth’s crust is broken into different size pieces called TECTONIC PLATES. Ø The locations of the plates were discovered by the locations of EARTHQUAKES and VOLCANOES Ø The plates are moving because of MANTLE CONVECTION. 1. Convergent Plate Boundaries Ø Plates move TOWARD each other Ø Plates can crash into each other and create MOUNTAINS Ø Plates can also sink into the Mantle. This is called SUBDUCTION Ø Subduction leads to the plate MELTING, which creates volcanoes. Ø A subducting plate often creates a TRENCH on the ocean floor. 2. Divergent Plate Boundaries Ø Plates move AWAY FROM each other Ø Divergent boundaries create RIDGE SYSTEMS in the middle of the ocean. Ø The MID ATLANTIC RIDGE is the major example. 3. Transform Plate Boundaries Ø Plates SLIDE PAST each other. Ø Transform plate boundaries create STRONG EARTHQUAKES Ø The SAN ANDREAS FAULT in California is the major example.