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SECTION PLATES CONVERGE OR SCRAPE PAST EACH OTHER. CHAPTER 1 Plate Tectonics 1.4 Reading Study Guide A BIG IDEA The movement of tectonic plates causes geologic changes on Earth. KEY CONCEPT Plates converge or scrape past each other. Vocabulary subduction occurs when one tectonic plate sinks beneath another continental-continental collision occurs where two plates carrying continental crust push together oceanic-oceanic subduction occurs where one plate with oceanic crust sinks under another plate with oceanic crust oceanic-continental subduction occurs when ocean crust sinks under continental crust Review 1. Divergent boundaries occur where . Take Notes Tectonic plates push together at convergent boundaries. (p. 30) 2. New crust forms at divergent boundaries, while older crust is ___________ at convergent boundaries. In subduction, one plate ____________ another plate. There are three types of convergent boundaries. A. Continental-Continental Collision (p. 31) Fill in the description wheel for continental-continental collision. mo un ta ins for m he re 3. CONTINENTAL CONTINENTAL COLLISION Himalayas are an example sils fos s of tain ce oun ren e m cu oc in th the als ins anim pla ex sea of Copyright © by McDougal Littell, a division of Houghton Mifflin Company I. 46 THE CHANGING EARTH, CHAPTER 1, READING STUDY GUIDE A 046-047-sean-urb-b0104-rsga 46 3/10/04, 2:56:04 PM B. Oceanic-Oceanic Subduction and Oceanic-Continental Subduction (pp. 32–33). Complete the chart. Notes CHAPTER 1 Plate Tectonics 4. Sketch Deep-ocean trench Island arc Copyright © by McDougal Littell, a division of Houghton Mifflin Company Coastal mountain 5. In the sketch below, two plates are converging. Draw mountains at the place where you would expect mountains to be formed by the plate motions. Draw an X where you think a volcano might form. 6. Only one of the plates in the sketch above is an oceanic plate. Which plate is it? How do you know? II. Tectonic plates scrape past each other at transform boundaries. (p. 34) 7. Fill in the frame game for transform boundary. TRANSFORM BOUNDARY III. The theory of plate tectonics helps geologists today. (p. 36) 8. How does the theory of plate tectonics help geologists today? THE CHANGING EARTH, CHAPTER 1, READING STUDY GUIDE A 47 046-047-sean-urb-b0104-rsga 47 3/10/04, 2:56:13 PM