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D45 Plate Boundaries D45 Boundary Background • The map on p D42 shows the locations of earthquakes and volcanoes on Earth. • Many of the most active volcanoes are on the edges of the Pacific Ocean, the “Ring of Fire”. • The theory of plate tectonics helps explain this • CHALLENGE QUESTION: How does plate tectonics explain the locations of earthquakes, volcanoes and mountain ranges? D45 Plate Motion Vocabulary • Convergent: plates colliding (mountains) • Divergent: plates dividing (volcanoes) • Transform: plates sliding along (earthquakes) • Subduction: one plate sliding under another D45 Boundary Reading • In the textbook read pages D43 – D46. • Answer questions on the D45 Lab worksheet. D45 Boundary Analysis: Date________ Name_____________________ Hr___ • Answer using complete paragraphs: 1. Describe two ways that the movement of lithospheric plates can form mountains. 2. Draw and label a Transform boundary, Divergent boundary, & Convergent boundary. 3. Which type of rock would you expect to find along a divergent plate boundary: igneous, metamorphic, or sedimentary? Explain.