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the CRUCIVERBALIST’S guide to PLATE TECTONICS 1 1 3 2 2 4 5 6 3 8 7 4 5 6 7 NewSullivanPrep.com Across: Down: 1) What term is given to underwater mountain ranges that are formed by plate tectonics and typically have rift valleys running through them? 1) What is the name of the process that occurs at midocean ridges where volcanic activity forms new oceanic crust that gradually moves away from the rift? 2) What is the name for a plate boundary where the plates are moving towards one another and colliding? 2) What is the name of the large peaks that form from the movement and interaction of Earth’s plates? *Why is this boundary also called destructive? 3) What is the name for the area where an oceanic slab is subducting beneath another tectonic slab at a convergent plate boundary? 4) What term is given to a large fracture along the Earth’s crust? 5) What is the name for a plate boundary where the plates are moving away from one another? *Why is this boundary also called constructive? 6) What term is given to the thicker type of lithospheric plate? *Which one of these are you on? 7) What term is given to ruptures in the Earth’s crust, generally occurring along convergent and divergent boundaries, where magma, ash, and gases escape from below the surface? *How close are you to one of these? *What was the most recent one of these to erupt? *Why do these often form in ranges? 3) What term is given to the thinner type of lithospheric plate? 4) What is the name for a plate boundary where the plates are moving against one another in opposite directions? *Why is this boundary also called conservative? 5) What is the name of the rigid outer shell of the Earth? It is comprised of the crust and upper mantle and is broken up into tectonic plates. *Which other planets also have these? 6) What term describes the process that occurs at convergent plate boundaries where one plate sinks beneath another? *What will happen to that plate that sinks below? 7) Which term is given to the event that occurs when a sudden release of energy in the Earth’s crust produces seismic waves? This event can be caused by plate tectonics. *Have you ever experienced one of these? *What was the most recent one of these to occur? 8) What term describes the slow movement of heat-driven currents in the Earth’s mantle that cause the movement of tectonic plates?
