Science tip #15/21/12

Science tip #1 5/21/121. What’s the name of the reptile

whose fossil remains are found on both the African and the S. American continent?

2. The Appalachian Mtns extend from the U.S to what other continent?

3. Mapping the Mid-Atlantic Ridge contributed to the discovery that the ___ ___ is spreading.

4. What is made in the middle of a rift like the Mid-Atlantic Ridge?

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!

#2 (please COPY BFP questions on your purple sheet) 5/22/12

1. What’s the difference between continental crust and oceanic crust?

2. What’s another name for “crust”?3. 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?

#3 (please COPY BFP questions on your purple sheet) 5/23/12

1. What are the 2 results of stress on Earth’s crust?

2. Using the diagram, name A and B.3. 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

AB

fisheries

Weaker hurricane season

floodingdroughts

Warmer winters

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

#4 5/24/12(please COPY BFP questions on your purple sheet)

1. How is a tsunami generated?2. What does the magnitude number of an earthquake

mean?3. 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. coalBFP #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