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Name___________________________________________ Date_____________ Period_______ Chapter 3 Practice Test – Part 2 – Will be turned in. Also review and study “Evidence for Continental Drift” (both sides). That will also be turned in. Be able to describe evidence from the continents used by Wegener to support continental drift. Wegener did not know about sea-floor spreading. I. Multiple Choice. Write the correct letter on the line provided. ______ 1. At one time, all the continents were joined together into a supercontinent called A. All-one B. Norsouamfriceurasiaustica C. Pangaea D. Bigland ______ 2. The theory of continental drift was proposed by A. Gregor Mendel B. Albert Einstein C. Alfred Wegener D. Barack Obama ______ 3. Continental crust is __________ than oceanic crust. A. thicker than B. thinner than C. the same density as D. more dense than ______ 4. This layer of the earth is made of solid iron and nickel. A. crust B. outer core C. upper mantle D. inner core ______ 5. The lithosphere floats on this partially molten rock layer of the earth. A. crust B. asthenosphere C. outer core D. inner core ______ 6. Ocean-floor spreading is occurring at the A. Himalayan Mountains B. San Andreas fault C. coast of Japan D. Mid-Atlantic Ridge (midocean ridge) ______ 7. The lithosphere is made of A. crust only C. crust and upper mantle B. crust and entire mantle D. crust and asthenosphere ______ 8. The lithosphere makes up the A. mantle C. tectonic plates B. crust D. asthenosphere ______ 9. The Earth’s magnetic field is most likely produced in the A. outer core B. inner core C. crust D. mantle ______ 10. Hawaii is a volcanic island that formed A. by subduction B. at a hot spot C. at a mid-ocean ridge D. all of the above ______ 11. The ocean floor is spreading between the continent of South America and A. North America B. Africa C. China D. Australia ______ 12. The heavy lines below represent the rift valley. Magnetic stripes look like picture A B C II. Plate Boundary Pictures A. The following diagram shows sea-floor spreading. Answer the questions. Water D A A B C B Asthenosphere Asthenosphere C Magma 1. What kind of plate boundary is shown above? ___________________________________ 2. Which rock is the oldest rock? (circle one) A B C 3. What is the feature that is labeled D where magma comes out? __________________________ 3. What is the feature that spans all of the letters A, B, C, D? ____________________________ 4. Draw arrows on the picture above to show the directions that the two plates are moving. 5 & 6. Label the 5) ocean crust and the 6) lithosphere on the figure above. B. The diagram to the right shows two plates that grind past each other horizontally in opposite directions parallel to the boundary. 1. This is an example of a ________________________________________boundary. 2. At this boundary ________________________________________________ will likely happen. Write all that apply: volcanic activity / earthquakes C. The following diagram shows how mountains like the Himalayan Mountains form. Label the diagram then answer the questions that follow. 2. top layer, two words: 1. top two layers together, one word: Asthenosphere 3. This is an example of a ____________________________________________boundary. The full name should have three words including “ocean” and/or “continent”. 4. Draw arrows in the plates to show the direction of the movement of the two plates. 5. At this boundary ________________________________________________ will likely happen. Write all that apply: volcanic activity / earthquakes D. The following diagram shows how island arcs form. Label the type(s) of crust (include the word “crust” in each answer), and trench. Then, answer the questions that follow. Magma 1. Water Water 3. 2. Asthenosphere 4. This is an example of a(n) ______________________________________________boundary. The full name should have three words including “ocean” and/or “continent”. 5. Draw arrows in the plates to show the direction of the movement of the two plates. 6. The process in which one plate slides under another is called __________________________. 7. At this boundary ________________________________________________ will likely happen. Write all that apply: volcanic activity / earthquakes E. The following diagram shows how some mountain ranges such as the Andes and the Northern Cascades formed. Label the type(s) of crust (include the word “crust” in each answer), and trench. Then, answer the questions that follow. Magma 1. Water 3. 2. Asthenosphere 3. This is an example of a(n) ______________________________________________boundary. The full name should have three words including “ocean” and/or “continent”. 4. Draw arrows in the plates to show the direction of the movement of the two plates. 5. At this boundary ________________________________________________ will likely happen. Write all that apply: volcanic activity / earthquakes 6. Show the lithosphere on both sides of the figure above. III. Map of Plate Boundaries. Use the letters on the map below to match the following. One letter each. _____ 1. Divergent boundary _____ 4. Continent/continent convergent boundary _____ 2. Ocean/ocean convergent boundary _____ 5. Strike-slip (transform) boundary _____ 3. Ocean/continent convergent boundary A – San Andreas Fault B – Andes Mountains C – Mid Atlantic Ridge D – Himalayan Mountains E – Aleutian Islands E D A C B Use the letters on the map above to match the following. Some will have more than one letter. Write all that apply. ________________ 1. Volcanic activity ________________ 2. Earthquakes ________________ 3. Trench ________________ 4. Mid-ocean ridge ________________ 5. Rift valley ________________ 6. Subduction ________________ 7. Volcanic mountains on land ________________ 8. Non-volcanic mountains within a continent ________________ 9. Volcanic islands. ________________ 10. Volcanic activity only under water ________________ 11. Plates sliding past each other ________________ 12. Creation of ocean crust ________________ 13. Destruction of ocean crust IV. Short Answer 1. All plate boundaries have earthquakes, but only some types of boundaries have volcanoes. Why is that? 2. Hawaii is a volcanic island in the middle of the Pacific Plate. How did it form away from plate boundaries?