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Science tip #1 5/21/12

Science tip #1 5/21/12. What’s the name of the reptile whose fossil remains are found on both the African and the S. American continent? The Appalachian Mtns extend from the U.S to what other continent?

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Science tip #1 5/21/12

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  1. Science tip #1 5/21/12 • What’s the name of the reptile whose fossil remains are found on both the African and the S. American continent? • The Appalachian Mtns extend from the U.S to what other continent? • Mapping the Mid-Atlantic Ridge contributed to the discovery that the ___ ___ is spreading. • What is made in the middle of a rift like the Mid-Atlantic Ridge?

  2. After the science tip….. • Correct ALL the wrong questions/answers on your Erosive Forces test, staple the corrections to the scantron, and turn in. • LEAVE your test copy on your desk. I’ll pick it up at the end of class. • Also--#13 D. 5 • Fill in objective notes 14.1-14.7 (book pages are listed on your notes for you.) What you don’t finish is homework. • Fyi, I’ll put your ppt notes online tonite…IF you’d like to use them. • Be sure to check the pass-back bin. • Have a fabulous Monday!

  3. #2 (please COPY BFP questions on your purple sheet) 5/22/12 • What’s the difference between continental crust and oceanic crust? • What’s another name for “crust”? • The convection cells that help to move the plates are located in the ______. BFP #1: What decreases the salinity in oceans? What increases it? (think about runoff, melting glaciers, evaporation, precipitation…) BFP #2: Which direction do ocean currents spin in the N. Hem due to the Coriolis effect?

  4. #3 (please COPY BFP questions on your purple sheet) 5/23/12 • What are the 2 results of stress on Earth’s crust? • Using the diagram, name A and B. • Which type of seismic wave is a compressional wave? BFP #3: During an El Nino event do the number of hurricanes typically increase or decrease? BFP #4: If a mineral scratches glass, its hardness on Mohs scale is… a. 1-2 b. 2-3 c. 4-5 d. 5.5-10 A B

  5. Warmer winters Weaker hurricane season flooding droughts fisheries

  6. Mohs hardness scale • fingernail (hardness = 2.5) • copper penny (hardness = 3) • glass plate or steel knife (hardness = 5.5) • steel file (hardness = 6.5) • 1- Talc • 2- Gypsum • 3- Calcite • 4- Fluorite • 5- Apatite • 6- Feldspar • 7- Quartz • 8- Topaz • 9- Corundum • 10- Diamond

  7. #4 5/24/12(please COPY BFP questions on your purple sheet) • How is a tsunami generated? • What does the magnitude number of an earthquake mean? • Describe 2 warning signs of tsunamis. If you haven’t been doing so already, please write ONE BFP per box AND begin TODAY with boxes 6 and 7. Thanks!  BFP #6: Which of these is NOT a fossil fuel? (eco geo unit) a. Natural gas b. coal c. uranium d. coal BFP #7: In the flotation method of refining ore, the rock is separated from the product by: (eco geo unit) a. differences in melting point b. replacing one chemical for another c. differences in density d. passing an electrical current through it

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