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Essential Question: SPI 7.7.6 How are plate movements related to the processes of the Earth? Activating Strategy: Plot earthquakes and volcanoes on a world map. Have them compare the activity of earthquakes and volcanoes to a plate tectonic map. OR Snickers Lab “Plate Tectonics” Teaching Strategies: Create a flipbook with details explaining the three types of boundaries and landforms associated with them. Brainpop “Plate Tectonics” Label a plate tectonic map. Use white boards with flipbooks to identify the boundaries shown in the PowerPoint. Summarizing Strategy: Complete the Plate Tectonic Graphic Organizer. Homework: “Giant Plates” WS “Know Your Boundaries” WS Daily Work 1. 2. 3. 4. 5. 6. 7. _________ Layer of molten iron and nickel that surrounds the inner core. _________ Thinnest, outermost layer of Earth; ranges from 5 to 100 km thick. _________ Name of the theorized super continent. _________ Rigid layer consisting of the crust and uppermost part of the mantle. _________ Dense sphere of solid iron and nickel. _________ Soft layer of the mantle on which pieces of lithosphere slowly float. _________, ________, __________, _____________ Four details that support Alfred Wegener’s Theory of Continental Drift. How are plate movements related to the processes of the Earth? Vocabulary Term Epicenter Seafloor spreading Rift Subduction zone Convergent boundary Divergent boundary Convection Transform boundary Hint Definition Vocabulary Term Hint Definition Epicenter Point on Earth’s surface directly above an earthquake’s focus Seafloor spreading Hess’s theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge Rift long crack, fissure, or trough that forms between tectonic plates moving apart at plate boundaries Location where one plate slips under a less dense plate at a convergent boundary Subduction zone Vocabulary Term Hint Definition Convergent boundary Location where two plates come together Divergent boundary Location where two plates move apart Convection current Current in Earth’s mantle that transfers heat in Earth’s interior and is the driving force for plate tectonics Location where two plates move opposite direction alongside each other Transform boundary Create Flipbook • Hamburger fold • 3 flaps –Convergent Boundary –Divergent Boundary –Transform Boundary Convergent Plate Boundaries • plates move towards each other – Continent/continent • High mnts form – Continent/ocean • • • • Subduction occurs Trenches form Volcanoes form Strong earthquakes Divergent Plate Boundary • plates move away from each other • mid-ocean ridges created through a crack in underwater crust • new crust is formed Transform Plate Boundaries • Crust neither created nor destroyed • Earthquakes created from stress released when the plates slide along each other • Example: – San Andreas fault in California http://www.pbs.org/wgbh/aso/tryit/tectonics/# Time to predict! Tectonic Plates • Earth’s crust is broken into pieces called plates • These plates are part of the lithosphere and move on top of the asthenosphere • Boundaries are drawn by studying earthquakes and volcanic eruptions. Map of Earth’s Plates Key to Earth’s Plates Juan de Fuca Cocos Nazca Caribbean Scotia Filipino North American South American Eurasian African Australian Antarctic Pacific Indian Arabian Let’s check our answers! This picture explains which vocabulary term? What type of boundary? What type of boundary? What type of boundary? What type of boundary? What type of boundary? What type of boundary? Timetracker • Read pages 308 – 317. • Do WB page 103. Vocabulary Term Hint Definition Epicenter Point on Earth’s surface directly above an _____________ focus Seafloor spreading Hess’s theory that ___ ________ is formed when magma is forced upward toward the surface at a mid-ocean ____ Rift long ______, fissure, or trough that forms between tectonic plates moving ______ at plate boundaries Location where one ______ slips ______ a less dense plate at a __________ boundary Subduction zone Vocabulary Term Hint Definition Convergent boundary Location where two plates ______ ________ Divergent boundary Location where two plates ______ ___________ Convection current Current in Earth’s mantle that transfers _____ in Earth’s interior and is the driving ______ for plate tectonics Location where two plates _____ opposite direction _________ each other Transform boundary Cut along the dotted lines.