Name:______Date:______Pd

Study Guide: Layers of the Earth, Continental Drift, and Plate Tectonics (S6E5a., S6E5e., S6E5f., and S6E5g.)

1.List and describe (composition) the layers of the Earth starting from the outermost layer. Draw a diagram (Crust, Lithosphere, Asthenosphere, Mesosphere, Outer Core, and Inner Core)
2. What is the inner core’s material?
3. What happens to the temperature, density, and pressure when you descend from the crust to the inner core?
4. List the layers from the least dense to most dense.
5. What is the Continental Drift Theory and who proposed the theory?
6. Describe 5 key pieces of evidence that Wegener discovered to support his theory of Continental Drift.
Why was Wegener theory rejected by other scientist?
7. What was the name of the supercontinent proposed by Wegener? What does the name mean?
8. Describe the process of sea-floor spreading. Where does the sea floor spread?
9. What is the mid-ocean ridge? What type of plate boundary movement exists at the mid-ocean ridge? What type of crust forms at the mid-ocean ridge?
10. Describe the process of subduction. What is a deep ocean trench (diagram)?
11. Why does Oceanic Crust subduct beneath Continental Crust?
12. What is the plate tectonic theory? What are tectonic plates?
13. What is the driving force that moves the tectonic/lithospheric plates? Where does this occur?
14. Describe Convection Currents.
15. Describe how the plates moves at each of the following boundaries: convergent, divergent, and transform
16. Describe what occurs at continental-oceanic convergent boundary?
17. What are volcanic mountains, how do they form, and where do they form?
18. Describe what occurs at a continental-continental convergent boundary?
19. What are folded mountains, how do they form, and where do they form?
20. What landforms could be created at convergent boundary?
21. Describe what occurs at an oceanic-oceanic convergent boundary?
22. What is a fault? Along what type of plate boundary do most faults form? What types of geological events occur along faults?
23. Where does most tectonic activity (earthquakes, volcanic eruptions, mountains, volcanic eruptions) occur?
24 . What is the Ring of Fire? What are Hot Spots?