Plate Tectonics Test

1.  The layer of Earth made up largely of the rocks basalt and granite is the a. Asthenosphere b. Crust c. Inner core d. Outer core

2. As depth beneath Earth’s surface increases, temperature and pressure a. Both increase b. Both decrease c. Approach zero d. Stay the same

3. How do geologists observe Earth’s interior? a. By visiting deep mines b. Sending robots deep beneath the surface c. By directly looking under the many layers d. By recording and studying seismic waves

4. What is the correct order (starting from the surface) of Earth’s layers? a. Crust, outer core, inner core, mantle b. Mantle, outer core, inner core, crust c. Crust, mantle, outer core, inner core d. Outer core, inner core, crust, mantle

5. Earth’s mantle is a. A layer of molten metal b. A layer of hot rock c. A dense ball of solid metal d. A layer of rock that forms Earth’s outer skin

6. Earth’s inner core is_________ because______ a. A dense ball of solid metal, the pressure is so great b. A dense ball of solid metal, the pressure is so little c. A layer of molten metal, the temperature is so great d. A layer of hot rock, Earth is one giant rock

7. Earth’s magnetic field results from the _________ of the ______ a. Temperature, inner core b. Temperature, outer core c. Spinning, inner core d. Spinning, outer core

8. An example of conduction is: a. A lava lamp’s contents flowing b. A metal spoon heating up in a pot on the stove c. The Sun’s rays heating Earth d. Currents in the mantle

9. Scientists think that ________ currents flow in Earth’s _______ a. Convection, asthenosphere b. Convection, mesosphere c. Conduction, asthenosphere d. Conduction, mesosphere

10. Heat is transferred within a fluid by a. Convection currents b. Radiation c. Conduction currents d. Stirring it

11. According to Wegner’s hypothesis of continental drift, a. Earth’s surface is made up of seven major landmasses, which are plates b. The continents float and are moving c. Earth is slowly cooling, causing lots of earthquakes d. The continents were once joined together, but now are not

12. What is Pangaea? a. The name of a German scientist b. The name of a super continent that existed 250 million years ago c. The cause of continental drift d. The first fossil found in the United States

13. Many scientists _________ Wegner because _________________. a. Doubted, he lacked evidence b. Doubted, he also thought Earth was flat c. Believed, of evidence from human remains d. Believed, of evidence from fossils

14. The mid-ocean ridge is an example of a _______________ plate boundary and is also ______ a. Convergent, the longest chain of mountains in the world b. Divergent, the longest chain of mountains in the world c. Convergent, found only in the Pacific Ocean d. Divergent, found only in the Atlantic Ocean

15. When ocean floor is forced down into the _______________ by way of a deep-ocean trench, _________ is occurring a. Crust, convection b. Crust, subduction c. Mantle, convection d. Mantle, subduction

16. The geological theory that states that pieces of Earth’s lithosphere are in constant motion is the theory of a. Sea-floor spreading b. Plate tectonics c. Continental drift d. Subduction

17. A collision between two pieces of continental crust at a converging boundary produces a a. Mid-ocean ridge b. Deep-ocean trench c. Rift valley d. Mountain range

18. A place where two plates slip past each other, moving in opposite directions is a a. Transform boundary b. Divergent boundary c. Convergent boundary d. No boundary

19. Geologists know that wherever plate movement stores energy in the rock along faults, a. Earthquakes are not likely b. Earthquakes are likely c. An earthquake is occurring d. An earthquake could never occur

20. If the arrows represent the movement of two continental plates, what would be the result? a. Trench b. Mountains c. Volcano d. Earthquake

21. If the arrows in #20 represent the movement of an oceanic plate and a continental plate, how does this movement affect Earth’s crust? a. New crust is formed b. A volcano erupts c. Old crust is destroyed d. An earthquake occurs

22. If these arrows represent the movement of two plates, what type of plate boundary would be represented?   a. Divergent boundary b. Convergent boundary c. Transform boundary d. Slide boundary

23. What type of fault is associated with the plate boundary you identified in #22? a. Strike-slip fault b. Reverse fault c. Side to side fault d. Normal fault