1 What term describes when one plate goes

1. What term describes when one plate goes under another plate, as in the diagram below? A. Divergent boundary B. Transform boundary C. Subduction zone D. Mid-ocean ridge 1

2. Which plate always goes “down” into the mantle? Why? A. Oceanic crust because it’s denser B. Oceanic crust because it’s less dense C. Continental crust because it’s denser D. Continental crust because it’s less dense 2

3. What two features should you expect to find whenever one plate goes under another plate? A. Volcanoes and mid-ocean ridges B. Trenches and mid-ocean ridges C. Mid-ocean ridges and abyssal plains D. Volcanoes and a trench 3

4. Which of the following would NOT apply to a mid-ocean ridge? A. Divergent boundary B. Crust is destroyed C. New crust is made D. Site of sea-floor spreading 4

5. You would expect to find the youngest oceanic crust… A. Near mid-ocean ridges B. Farther away from mid-ocean ridges C. Near subduction zones D. Next to beaches 5

6. Which of the following is found at a transform boundary? A. Andes Mountains B. Himalaya Mountains C. San Andreas Fault D. Mid-Atlantic Ridge 6

7. Which of the following occurs at a transform boundary? A. Fracturing of the crust B. Formation of new crust C. Recycling of crust D. Subduction 7

8. Which of the following is NOT being depicted (or shown) in the diagram? A. Subduction zone B. Rifting C. Seafloor spreading D. Magnetic patterns on the ocean floor 8

9. In which layer of the Earth are convection currents occurring? A. Inner Core B. Lithosphere C. Outer Core D. Mantle 9

10. What type of boundary exists between the Indian plate and the Eurasian plate? A. Divergent B. Convergent C. Transform 10

11. What type of boundary exists between the North American plate and the Eurasian plate? A. Divergent B. Convergent C. Transform 11

12. What type of rock makes up the ocean crust? A. Granite B. Basalt C. Sandstone D. Limestone 12

13. Which layer of the Earth contains 85% iron and 15% nickel and has the same composition as meteorites? A. Crust B. Mantle C. Core 13

14. What did scientists use to determine all of the plate boundaries? A. Location of trenches B. Location of mid-ocean ridges C. Location of volcanoes D. Location of earthquakes 14

15. All of the following were used as evidence for sea floor spreading except A. Magnetic patterns on the ocean floor B. Age of the ocean crust C. Depth of the ocean D. Sediment thickness patterns on the ocean floor 15

16. What is the main thing used to study all of Earth’s layers? A. Drilling B. Sonar C. Seismic waves D. Satellites 16

17. What theory saved Alfred Wegener’s idea of continental drift? A. Evolution B. Big Bang Theory C. Seafloor Spreading D. Theory of Relativity 17

18. Which layer of the Earth is brittle and is broken into plates? A. Lithosphere B. Asthenosphere C. Mesosphere D. Core 18

19. Which layer of the Earth behaves like a plastic and flows very slowly? A. Lithosphere B. Asthenosphere C. Mesosphere D. Core 19

20. Which of the following is not one of the major features of the ocean floor? A. Craters B. Abyssal plains C. Trenches D. Mid-ocean ridges 20

21. What is the deepest trench in the world? A. Aleutian Trench B. Mariana Trench C. Peru-Chile Trench D. Japan Trench 21

22. How fast do the tectonic plates move? A. Too slow to measure B. About 10 feet per year C. About 2 -10 centimeters per year D. Faster than a cheetah but slower than a jet 22