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# Unit Test Study Guide

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### Unit Test Study Guide

1. 1. Changing Earth Formative Assessment<br />Grade:<br />6<br />Science<br />Subject:<br />9/12/11<br />Date:<br />
2. 2. 1<br />What is the correct order of the layers of the Earth from OUTERMOST layer to the INNERMOST layer?<br />A<br />crust, outer core, inner core, mantle<br />B<br />crust, mantle, outer core, inner core<br />C<br />inner core, outer core, crust, mantle<br />D<br />inner core, outer core, mantle, crust<br />
3. 3. 2<br />Which of the following is true as you move from Earth's outermost layer to its innermost layer?<br />A<br />The thickness of each layer increases<br />B<br />The thickness of each layer decreases<br />C<br />The heat and pressure increase<br />D<br />The heat and pressure decrease<br />
4. 4. 3<br />Which of the following statements is most true of the inner and outer core?<br />A<br />They are both a molten layer<br />B<br />They are both a solid layer<br />C<br />They are both made of magma<br />D<br />They are both made of iron and nickel<br />
5. 5. 4<br />Which of the following statements does not describe a tectonic/crust plate?<br />A<br />They are stationary<br />B<br />They are driven by actions in the mantle<br />C<br />They move slowly<br />D<br />They have been moving for millions of years<br />
6. 6. 5<br />Which of these statements is correct?<br />A<br />Continental crust is thicker than oceanic crust<br />B<br />Continental crust is thinner than oceanic crust<br />C<br />Oceanic crust does not exist<br />D<br />Continental and oceanic crust are the same thickness<br />
7. 7. 6<br />Mid-ocean ridges are places where tectonic/crustal plates are...?<br />A<br />colliding<br />B<br />sliding past each other<br />C<br />spreading apart<br />D<br />none of the above<br />
8. 8. 7<br />Approximately 225 million years ago, the Earth's continents were grouped into one landmass. What was this landmass called?<br />A<br />Europa<br />B<br />Jurassic<br />C<br />Pangaea<br />D<br />Pangaea Ultima<br />
9. 9. 8<br />What is happening at a subduction zone?<br />A<br />The oceanic crust is being pulled under continental crust<br />B<br />Plates are sliding past each other<br />C<br />Plates are spreading apart<br />D<br />None of the above<br />
10. 10. 9<br />When did the supercontinent of Pangaea begin to break apart?<br />A<br />20 million years ago<br />B<br />40 million years ago<br />C<br />100 million years ago<br />D<br />200 million years ago<br />
11. 11. 10<br />Which of these concepts is part of the theory of plate tectonics?<br />A<br />Continents are fixed and do not move<br />B<br />A great flood shaped Earth's surface<br />C<br />Continents are in slow, constant motion<br />D<br />Continents and crustal/tectonic plates are the same size<br />
12. 12. 11<br />Mountain formation can result when which of the following occurs?<br />A<br />Two oceanic plates collide<br />B<br />Two continental plates collide<br />C<br />Two oceanic plates spread apart<br />D<br />Two continental plates spread apart<br />
13. 13. 12<br />What is the border between two tectonic/crustal plates called?<br />A<br />boundary<br />B<br />collision zone<br />C<br />rift<br />D<br />trench<br />
14. 14. 13<br />Which of the following geologic events are most common at a transform boundary?<br />A<br />Mountain formation<br />B<br />Earthquakes<br />C<br />Volcanic eruptions<br />D<br />Rift formation<br />
15. 15. 14<br />What is NOT likely to happen at a divergent boundary?<br />A<br />Volcano formation<br />B<br />Seafloor spreading<br />C<br />Rift valley<br />D<br />Mountain formation<br />
16. 16. 15<br />California's San Andreas Fault is identified as which type of fault?<br />A<br />Blind thrust<br />B<br />Dip-Slip<br />C<br />Normal<br />D<br />Strike-Slip<br />
17. 17. 16<br />Which is true of P waves?<br />A<br />They do the most damage on the surface of the Earth<br />B<br />They are the slowest of all earthquake waves<br />C<br />They are the fastest of all earthquake waves<br />D<br />They are the last to arrive at a seismograph<br />
18. 18. 17<br />Which type of earthquake waves cause the most damage?<br />A<br />S waves<br />B<br />P waves<br />C<br />Surface waves<br />
19. 19. 18<br />What best describes the magnitude of an earthquake?<br />A<br />It is how long the earthquake waves were felt<br />B<br />It is the distance the waves of an earthquake travel<br />C<br />It is how powerful the earthquake was<br />D<br />It is the time between S and P waves<br />
20. 20. 19<br />Which of the following statements is true?<br />A<br />The focus is directly above the epicenter<br />B<br />The epicenter is directly above the focus<br />C<br />The focus is the point on the surface where the earthquake originated<br />D<br />The epicenter is the point in the ground where the earthquake originated<br />
21. 21. 20<br />What is this a picture of? <br />A<br />Earthquake damage<br />B<br />Earthquake S and P waves arrival times<br />C<br />Earthquake frequency<br />D<br />Earthquake damage report<br />
22. 22. What is the S-P interval for this seismograph?<br />
23. 23. 22. What is the amplitude of the S wave?<br />
24. 24. 23. What is the magnitude of this earthquake? <br />
25. 25. 24. In what city is this earthquake’s epicenter?<br />