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Download Students must know the following vocabulary: Plate tectonics
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Transcript
Plate Tectonics Test Study Guide & Review Students must know the following vocabulary: Plate tectonics Geosphere Hydrosphere Biosphere Atmosphere Cryosphere Crust Oceanic crust Continental crust Lithosphere Mantle Asthenosphere Outer Core Inner Core Tectonic plates Continental drift Seafloor spreading Mid-ocean ridge Magnetic reversal Normal polarity Reversed polarity Convection currents Basal drag Slab pull Ridge push Subduction zone Glossopteris Plastic (state of matter of Asthenosphere) Topics: Earth’s Systems - Geosphere - Hydrosphere - Biosphere - Cryosphere - Atmosphere Earth’s Interior/Layers - Place the layers of the Earth in order from the surface to the center. - What happens to the temperature as we travel from the surface to the center of the Earth? The pressure? The density of the rock? - What is the lithosphere? Asthenosphere? - What is the composition of each layer? - What is the state of matter of each layer (solid/rigid, liquid, gas, plastic?)? - What are the properties of the two types of crust (oceanic/continental)? Plate Tectonics Test Study Guide & Review Continental Drift Hypothesis - Who came up with the hypothesis that continents were once connected? - What evidence did he use to back up his hypothesis (use foldable)? - How was the puzzle-like fit, rock, climate, and fossil evidence used to support his hypothesis? - Did scientists believe Wegener? Why or why not? o Scientists did not know HOW the continents drifted. Seafloor Spreading - What happens at a mid-ocean ridge? - Where does new crust form and where is does older crust go? - How do magnetic alignments of iron minerals in oceanic rock help us determine how the seafloor is spreading? - How does temperature of ocean rocks help us determine how the seafloor is spreading? - How does rock dating help us determine how the seafloor is spreading? Forces Involved in Plate Tectonics - What is a convection current? - Why do convection currents occur in the mantle? (heated unequally) - What property of the asthenosphere allows tectonic plates to move? - Describe the four forces that drive plate tectonics. o Convection in the mantle o Ridge push o Slab pull o Basal drag - What is a subduction zone? - What happens when oceanic crust collides with continental crust? Be able to label parts of the seafloor spreading diagram. Be able to explain the forces that drive plate tectonics using this diagram.