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1-5 Plate Tectonics (pp. 42-47) ∆Introduction (p. 42) How are Earth’s lithosphere and a hard-boiled egg that has been dropped on the floor similar? __________________________________________________ __________________________________________________ The separate sections of the lithosphere are called p________. Plates can carry c_________, the o________ floor, or both. ∆The Theory of Plate Motion (p. 43) What three things led J. Tuzo Wilson to develop the theory of Plate Tectonics? _______________________________ _______________________________ _______________________________ State the theory of Plate Tectonics: ____________________________________________ ____________________________________________ ____________________________________________ What three things does the theory of Plate Tectonics explain? _______________________________ _______________________________ _______________________________ Faults – b_________ in the Earth’s crust where rocks have slipped p_________ each other. ∆Plate Boundaries (pp 44-46) Plate Boundary – the line where different p_________ of the lithosphere meet Rift Valley – Deep valley that f_______ where two plates meet. 3 types of plate boundaries Transform Boundary – crust is neither created nor destroyed Plates slip past each other in o___________ directions. Earthquakes are frequent here. (California) Divergent Boundary – 2 plates pull apart (Mid Ocean Ridge) and r___________ valleys (Great Rift Valley in Africa) Convergent Boundary – 2 plates c___________ together Can be continental plates, oceanic Plates or both. (Himalayas) What happens where two plates converge? How do you know which plate will rise above the other, and which one will sink down under the other? __________________________________________________ __________________________________________________ So…what happens to two continental plates that collide? Continental vs. continental = ____________________________ _________________________________________________ What happens to two oceanic plates that collide at a trench? Oceanic vs. oceanic = deep ocean trench – __________________ __________________________________________________ And what happens when a continental plate collides with an oceanic plate? _____________________________________________ __________________________________________________ ∆The Continents’ Slow Dance (p. 47) How fast are the continents moving? Cite evidence from your text to support your answer. ________________________________ __________________________________________________ __________________________________________________ Use the diagrams on p. 47 of your textbook to answer the following question. Are we heading toward Europe or away from Europe? __________