Name: ______period: ______

Plate Tectonics Quiz

32 points

Part 1:

Complete the following chart to help you recall information about the three kinds of plate boundaries. (1 point per blank)

Boundary Type / Movement of Plates / Diagram
1. / Plates move towards each other / 2.
3. / 4. /
5. / 6. / 7.

8. What are the two different types of crust? (2 points)

______Crust

______Crust

Part 2: Multiple Choice (1 point each)

______9. A chain of mountains is located near the western coast of a continent next to a plate boundary. Which sentence describes how these mountains most likely formed?

A. As a continental plate and an oceanic plate collided, part of the oceanic plate subducted, volcanoes erupted, and the crust buckled, forming the mountains.

B. As two oceanic plates collided, one of the oceanic plates subducted, and the other plate rose to the surface, forming folded mountains.

C. As two oceanic plates moved apart, new seafloor was produced, forming a ridge.

Please use the diagram, Simplified Diagram of Earth’s Mantle in order to answer the following two questions. (questions #10 and 11)

______10. What is the process shown above by which molten material moves through the Earth’s mantle?

  1. Radiation
  2. Convection Currents
  3. Faulting

______11. Why is this process significant to the theory of plate tectonics?

  1. It is not significant to the theory of plate tectonics.
  2. It keeps the Earth in orbit around the sun.
  3. It is thought to be the reason the Earth’s tectonic plates move

Use your knowledge of plate tectonics to show where the following terms are located on the diagram of Earth. (1 point each)

______12. Lithosphere

______13. Asthenosphere

______14. Convergent Boundary

______15. Divergent Boundary

______16. Which landform is likely to form where two oceanic plates separate?

  1. rift
  2. mid-oceanic ridge
  3. volcanic island

______17. The San Andreas Fault is an example of a ______.

  1. convergent boundary
  2. divergent boundary
  3. transform boundary

______18. Where does sea-floor spreading occur?

  1. at convergent boundaries
  2. at subduction zones
  3. at divergent boundaries

Please refer to the diagram, Coastal Cross-Section to answer the following two questions. (questions #19 – 20)

______19. Which of the flowing numbers (shown on the diagram) refers to the subduction zone?

  1. 2
  2. 3
  3. 4

______20. What kind of plate boundary is illustrated here?

  1. Convergent
  2. Divergent
  3. Transform

Use the three types of plate boundaries to answer the next set of questions.

A. TransformB. DivergentC. Convergent

______21. At which boundary would crust be melted (as it sinks into the mantle) as subduction occurs?

______22. TheAfrican Rift Valleyan example of which type of boundary?

______23. Along which boundaries would an earthquake occur.

24. What type of boundary is shown in each of the pictures above? (3 points)

  1. ______
  2. ______
  3. ______

Use the diagram below to answer the following questions

25. Where does the heat come from that drives this convection current in the mantle?

______

26. Where is the temperature of the mantle material greater, at point A or point B? ______

Explain/Defend your answer. (2 points total)

______

______

26. Where is the density of the mantle material greater, at point A or point B? ______

Explain/Defend your answer. (2 points total)

______

______