Smithsonian Exercise **Due: See Syllabus!! National Museum of Natural History; 10th St. & Constitution Ave NW (202) 357-1300 Hours: 10-5:30 P.M., 7 days a week Directions: -Go upstairs to the Janet Annenberg Hooker Hall of Geology, Gems and Minerals -Enter the hall at the Hope Diamond sign. -The following question sets cover information presented in displays in the Hooker Hall. 1)Answer 8 out of 10 questions sets on separate paper. 8 OUT OF 10!!! 2)ALSO in a half page minimum (single spaced) for each, report on two other displays of interest in this hall. *Refer to the attached map for the location of the displays covered in this exercise. l)The Hope Diamond- (LOOK FOR THIS TITLE & OTHERS BELOW ON DISPLAYS). a) What conditions (depth, pressure, temperature, chemical composition) are necessary to make a diamond like The Hope? b. Study the diagram showing the diamond’s journey to the surface and into gravel deposits. Summarize the steps that formed the diamond and brought it to the surface. c. What makes the Hope Diamond blue? 2) Salt of the Earth a. What three-dimensional shape do salt (halite) crystals take on? b. What does this shape say about the internal arrangement of the atoms? c. On the model salt crystal, what elements do the red and blue spheres represent? d. Are all crystals the same? Explain. e. Find a mineral displayed that is from your region of the country/world. Describe it with name, color, shape, chemistry information from the display. |3) Cave Formation a. Summarize the steps involved in cave formation. Touch the Basic Cave Ingredient b. What rock are nearly all caves made of? c. What features are seen in the displayed rock and what does it tell us about the environment of deposition? 4) Water Recycles Rocks a. How are rocks with ripple marks formed? b. What is the difference between ripples and dunes. What does each say about the water/wind velocity? Brazos River Sediment c. Draw the beds of this displayed sedimentary rock. d. Next to your drawing, show with an arrow the direction that the water flowed. e. How did the flat surfaces form? 5) Journey Inside the Earth a. Describe how heat is produced inside the earth? b. Push the button for the location of the thickest continental crust. Referring to the scale on the left, approximate the depth of the thickest continental crust. Record this depth. 6) How can a Rock be Transformed? a. What are the two types of metamorphism and how do they differ? What happened in Leesburg? b. Summarize in steps how and when the rocks of the Culpeper basin were metamorphosed. 7) Volcanoes!-Volcanic Profiles a) What does the size, shape and explosivity of a volcano depend on? b)How is Mt. St. Helens volcano classified ? c) Compare the height, diameter and total life span of Mt. St. Helens and Mt. Rainier. \ i\ 8) Design a Volcano- display on computer a. Using viscosity (thickness of lava) , volume and volatiles (gases), design a volcano. b. Report on your creation. How does it behave? What real life volcano does it resemble? 9) Above Hot Spots? a) Other than millions of tourists, what do Yellowstone National Park and the Hawaiian Islands have in common? b. How do hot spots form? c. C)As hot spots, how do Yellowstone and Hawaii differ? d) Where approximately, on the east coast is the Yellowstone Hot Spot “headed?” 10) Large Globe – Plate Tectonics a. What is a plate? b. How many plates are there and what plate do you live on? c. In what direction our plate moving? d. Why do plates move? e. What happens at plate boundaries and how does this affect the earth’s surface?