Name: B Date Quiz part 3a due L,M,N, Q 3b due Check website handout version for new hints &/or changes in red

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1 Name: B Date Quiz part 3a due L,M,N, Q 3b due Check website handout version for new hints &/or changes in red TASA Theory of Plate Tectonics- ES1 Act #3 no skip pass For Part A (before quiz), do A through K and O through P first. For Part B (before test) do: L,M,N &Q A. Log in science desktop or student laptop as a guest. B. Choose Finder (blue square at left of dock), Applications, TASA 2.2 then Plate Tectonics OSX, advanced. If a section seems to be missing, check you are in advanced. OSX is needed to run this program. Plan time to use school computers to complete. See your assignment list for good times. You need science dept or some library, SPED computers. Mrs. SF to say which library computer does not have it loaded or write it here: NOT ON #. Also write here any question # for which your need clarification C. Review the main menu on the first screen. Mute the sound unless working alone. Write down the screen # from upper right if you have to stop before you are done. Be succinct on all answers. D. Start with the #1 Introduction: There are not questions for every page, but good information on all. 1. Describe where N. America was 200 mya (million years ago) compared to other continents. 2. What 4 surface features or effects do the movement of land masses produce? a. b. c. d. 3. Rotate the earth with different colored plates (screen 14-look at upper right box). Along which coast of N and S. America do you see a long line of mountains next to deep ocean trenches? yay, bonus pt. E Go to #2 Continental Drift, and answer these questions. 1. What happened in the early twentieth century? 2. Who first proposed the idea of continental drift? 3. Define Pangaea 4. When did it exist?. 5.On screen 19, drag the cursor on the globe to move Pangaea through time (up to go back in time and down to go forward). How many million years ago did South America split from Africa? Drag the globe horizontally until the Pacific Ocean appears, and then the cursor up and down. When did the first seamount in the Hawaiian island chain appear above the surface?, when did today s islands appear? F. Continue with Fit of the Continents. Read until screen 25, Wegener s 1929 map of Pangaea. What continents were next to a. Antarctica, b. India (not labeled), and c. Greenland? a. b. c Look at the next 3 screens. For Ex.Cr, How do the continental shelf edges of S. America & Africa fit compared to the present coastline? G. Continue with #2 Fossil Evidence. 1. On what continents did the Glossopteris evidence match to support Wegener s theory? 2. Why do you think the fresh-water animal Mesosaurs appear only in S. America and Africa and not other continents? (screen 34, think about distance) total wrong/part A 49@2 grade = 3. Name 2 of the 3 other explanations for fossil distribution, not as good as total wrong/part B Pangaea? (screen 38, 39) 38@2.5 grade = Make appt to H. Continue with #3 Evidence from the rocks do F EX pg for. 1. Describe some landforms which also supported Wegener s theory: MCGC CIC L FL Forgot grade abbreviations? See class sign, Ipass progress report 2. Where do the Appalachian mountains continue in Europe? comments to class, ES1 or ES2 home pages on Mrs. S-Fs website. Do corrections in another I. Go to #4 PaleoClimatic Evidence. 1. Where was the glaciated area in Africa found? color. 2. How do plate tectonics explain the glaciation there? 3. Describe the type of vegetation shown (review 56). This is the basis for the formation of coal: Pg. 1 of 5 ES1 Plate Tectonics CD Sanders-Fleming 3/10/16 9:17 AM because oops, no HO, book, heading on this date =MP Plate Tectonics

2 4. Where (on what present continent) was this type of vegetation at that time? 5. Where were the a. glaciated and b. coal-forming areas located at the time of Pangaea a. b. J. Go to Great Debate 1. Describe how Wegener proposed that the continents moved: 2. Why did other scientists disagree with this? Skip the Review sections for now. You may return to them when you are finished with the questions. They are good help in studying for the quiz or test. K Go to 4 Plate Tectonics: The New Paradigm, and answer these questions. 1. Describe the lithosphere and what makes it up: 2.. Describe the thickness of the two types of crust: a. b. 3. How does the asthenosphere allow the rigid outer shell to move? 4. Name 3 of the 7 major plates: How are the continental plates different than Wegener s hypothesis?: L 1. Name 3 of the 6 intermediate plates: 2. Follow the directions to put the major plates in their correct place, clicking on Is this right? Notice the three intermediate ones near us in N America--which one causes island arcs between South America and the Gulf of Mexico? 3.Which causes earthquakes west of Mexico? Which tiny one causes earthquakes on the US west coast? 4. Why doesn t the distance between NYC and Denver change, while London gets farther away? 5. Where do major interactions among plates happen? a. What is created at divergent boundaries? b. What happens to the subducted plate in the mantle? 6. Notice the three types of plate boundaries on the Juan de Fuca plate. a. What breaks up the divergent boundaries? b. Where is the convergent boundary?: c. What kind of fault (the San Andreas) goes right through San Francisco? 7. Why might someone hesitate to live in California? 8. What is happening along the Red Sea and East African rift valleys? M Skip the Review sections for now. Go back to the Main Menu Go to # 5 Divergent Boundaries. 1. Divergent boundaries exist mainly on the crests of 2.What fills the gaps as plates spread apart and creates new seafloor? Click shovel in lower left. Which rock type melts at a higher temperature? Ocean Ridges and Seafloor Spreading. 3. Rotate the globe on screen 194. Where is the Indian Ridge? 4. How fast is new crust created? the same speed as 5. How long did it take to generate all of Earth s ocean basins? Continental Rift 6. What is created first when 2 continents pull apart? 7. How old is the Red Sea? What might happen to Africa and Arabia? Pg. 2 of 5 ES1 Plate Tectonics CD Sanders-Fleming 3/10/16 9:17 AM

3 N Skip the Review. Go to #6 Convergent Boundaries. 1. Where are pieces of ocean crust destroyed? 2. When 2 plates converge one slides the other, called a zone Why do plates subduct? 3. How old must oceanic crust be to be dense enough to subduct? Which subducts most steeply, old or young crust? The overlying plate is pulled down creating a deep There are 3 possible combinations for crust to collide a. continental hits, b. oceanic descends beneath and c. two hit. Ocean Continental Convergence. Note: this program describes volcanic mountains as a land arc and non-volcanic mountains as mountain range. Which is denser, oceanic or continental crust? 4. (Scr. 326-may need intermediate) An oceanic plate hits a continental plate. Which floats? 5. In subduction, what is squeezed from the plate that causes partial melting? 6. When andesitic magmas reach the surface, how do they erupt? 7. Hot magma melts and rises to form a chain of on the continent, like the Mountains in South America, where the Plate subducts. (260) Mt. St Helens in the western US is in the Range. Skip to Oceanic-Oceanic Convergence 8. We will see some of these volcanoes in an upcoming video. 8. In which country is Pinatubo located? (may be screen 153) 9. Instead of continental volcanic mountains, now a volcanic forms 10.Look at screen 289. Island arcs are parallel to deep ocean 11. Skim to screen 300 and read to 304. Where is the Mariana Subduction Zone? Why is the trench so deep? Skip to Continental-Continental Convergence 12. On screen 317, name 2 places you see continental shields & On screen 319, drag your cursor horizontally to make the plates collide. What happens to the magma? Describe how the Himalayas formed: 13. Name 2 more continental mountain. ranges: & What 2 continents joined to form the Urals in Russia? & Which 3 formed the Appalachians and Caledonian Mts.? & & 14. Read through to 335: What formed the mountains of Alaska? This is how much of Massachusetts formed, also. 15. Check your understanding: when an oceanic plate hits a continental plate, which forms?: 16. When 2 oceanic plates collide which is formed? (circle one) We ve discussed many examples, give one: 17). When 2 continental plates collide which is formed? (circle one) Skip the Review. Go to #7 Transform Boundaries 1. Describe a transform fault From the map, screen 348, describe where one is located: 2. Transform faults join the ridge system to form zones, causing Skip to 359. What fault threatens California? Which way is the Pacific Plate moving? Where will Baja California go? Pg. 3 of 5 ES1 Plate Tectonics CD Sanders-Fleming 3/10/16 9:17 AM

4 O Skip the Review. Go to #8 Testing the Plate Tectonics Model, Ocean Drilling 1. How are sediments used to date the ocean floor? 2. Describe the age pattern seen on screen 379: Skip the Review. Go to Earthquake Patterns 1. What do earthquakes outline on screen 384? 2. Read to screen 391. What feature is associated with the deepest earthquakes? 3. Read to 396. What is the plate interacting with to cause shallow earthquakes? 4. Read to 400. At which boundary types do only shallow earthquakes occur? & Why do deep quakes help track the subducting plate? Skip the Review. Go to Hot Spots and Mantle Plumes 1. Describe the shape and location of the Hawaiian Island-Emperor Seamount Chain: 2. How do the ages change along the chain? 3. What is a hot spot? 4. Drag the plate in 419, and read to 423. How are the ages of Hawaii and Kauai shown in their different erosion patterns? 5. Read to 428 & describe change in Pacific plate motion direction, & for how long that created the chain: 6. Name 2 hot spot island chains in the N Atlantic & 7. In what direction did the Yellowstone hotspot move from Nevada 16 mya? P. Skip the Review. Go to Magnetic Reversals 1. What minerals show reverse polarity, and how? 2. Describe the ages of polarity in screen Do the graph from 449 to 453, read til 462 and describe the paleomagnetic pattern found by Vine and Matthews which we saw in the Birth of a Theory video: 4.Read til 468--how do these paleomagnetic stripes strongly support the plate tectonic theory? 5. Do the graphs on 472, read til 476. How much faster is the spreading rates in the Pacific than the Atlantic Ocean? Skip the Review. Go to #9. What Drives Plate Motions 1. Read til 487 and describe convection in the mantle: 2.Read til 491-what 2 forces drive the plates? & Continue to 496: which one appears to be more powerful, based on spreading rates? 3. Try the models on 497: How are the 2 proposed convection models different? 4. Read til 507. Which do scientists prefer, and why? Q Skip the Review. Go to #10 Pangaea Before and After 1. Read til 518. What is the supercontinent cycle? 2. Why can t we re-construct supercontinents before Pangaea accurately? 3. Watch the animations and read til 528. What was pre-north America called? with what southern continent did it combine? When was Pangaea complete? 4. Watch the animations and read til 533. When did the S. Atlantic open? What subcontinent is zooming northwards into Asia? What happened in the last 20 my? Try screen 535 a few times..cool! Describe what you see: Pg. 4 of 5 ES1 Plate Tectonics CD Sanders-Fleming 3/10/16 9:17 AM

5 Read til 543: What will happen in N America in the next 50my? Pg. 5 of 5 ES1 Plate Tectonics CD Sanders-Fleming 3/10/16 9:17 AM