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Transcript
Plate Tectonics Study Guide Vocabulary Pangaea Divergent boundary Convergent boundary Transform boundary Convection Inner core Outer core Lithosphere Asthenosphere Mesosphere Seismic Waves Subduction Zones Magnetic Reversal Crust Questions: 1. Describe the three compositional layers of the earth. 2. Describe the five physical layers of the earth. 3. Explain Wegner’s theory of continental drift. 4. Name four pieces of evidence that supports the theory of continental drift. 5. What provides us with knowledge about the interior of the earth? 6. What is evidence of sea-floor spreading? 7. What forces cause the earth’s plates to move? 8. Give an example of each type of tectonic plate boundary and where we see them? 9. Approximately how far do plates move each year? 10. Name four major tectonic plates. 11. Explain how convection causes tectonic plate movement. 12. Explain why the earth does not continually expand throughout time? 13. How does the texture of the mantle help tectonic plates move? 14. Compare oceanic and continental crusts. Mantle Tectonic plates Continental drift Sea-floor spreading Plasticity Slab pull Ridge push