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THIS IS With Your Host... Modified T/F Modified T/F Multiple Choice Multiple Choice Completion Completion 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 The larger the force applied to a fault, the smaller the chance of a large earthquake. A 100 False; larger A 100 Volcanoes can form on the ocean floor. A 200 True A 200 DAILY Place A Wager DOUBLE A 300 The picture shows a normal fault, where forces push two blocks of rock together. A 300 False; reverse A 300 In a strike-slip fault, two blocks of rock slide horizontally past each other. A 400 True A 400 Secondary seismic waves cause rocks to vibrate in the same direction waves travel. A 500 False; perpendicular to the A 500 Cinder cone volcanoes produce quiet eruptions. B 100 False; loud B 100 The forces that move tectonic plates also move rocks along the fault. B 200 True B 200 There is no relationship between plate tectonics and volcanoes. B 300 False; a B 300 Gas trapped in magma under high pressure can cause explosive eruptions. B 400 True B 400 The Modified Mercalli scale uses the amount of ground motion at a given distance from an earthquake to determine magnitude. B 500 False; Richter B 500 DAILY Place A Wager DOUBLE C 100 Which waves travel the deepest into the center of Earth? a. P-waves b. S-waves c. surface waves d. They all travel to the center of the inner core. C 100 Which waves travel the deepest into the center of Earth? a. P-waves C 100 What are the positive results of volcanic eruptions? a. The climate becomes warmer. b. Extra sulfuric acid is removed from the atmosphere. c. Rock and soil are enriched with valuable nutrients. d. Growing seasons become longer. C 200 What are the positive results of volcanic eruptions? a. The climate becomes warmer. b. Extra sulfuric acid is removed from the atmosphere. c. Rock and soil are enriched with valuable nutrients. C 200 In what way do volcanic eruptions affect the climate? a. They cause a global temperature increase. b. They cause a global temperature decrease. c. They cause a global precipitation increase. d. They cause a global precipitation decrease. C 300 In what way do volcanic eruptions affect the climate? a. They cause a global temperature increase. b. They cause a global temperature decrease. C 300 Which scale would be used to classify an earthquake based on a description found in ancient writings? a. Modified Mercalli Scale b. Richter Scale c. moment magnitude scale d. all of the above C 400 Which scale would be used to classify an earthquake based on a description found in ancient writings? a. Modified Mercalli Scale C 400 Basaltic magma produces nonexplosive eruptions such as those at ____. a. Mount St. Helens b. Mount Pinatubo c. Kilauea d. Mount Unzen C 500 Basaltic magma produces nonexplosive eruptions such as those at ____. a. Mount St. Helens b. Mount Pinatubo c. Kilauea C 500 Which factor does NOT effect the speed of a seismic wave? a. temperature b. season of the year c. chemistry of the rocks d. pressure D 100 Which factor does NOT effect the speed of a seismic wave? a. temperature b. season of the year D 100 The point in Earth's interior where the energy release of an earthquake occurs is the ____. a. focus b. epicenter c. fault d. inner core D 200 The point in Earth's interior where the energy release of an earthquake occurs is the ____. a. focus D 200 If, after an eruption, the top of a volcano collapses down, a ____ forms. a. caldera b. vent c. crater d. volcanic neck D 300 If, after an eruption, the top of a volcano collapses down, a ____ forms. a. caldera D 300 DAILY Place A Wager DOUBLE D 400 For the Richter scale, each increase on the scale represents ten times the amount of ground motion recorded on the seismogram. How much more motion is there for a magnitude 7 earthquake than a magnitude 4 earthquake? a. 3 times b. 30 times c. 1000 times d. 3000 times D 400 For the Richter scale, each increase on the scale represents ten times the amount of ground motion recorded on the seismogram. How much more motion is there for a magnitude 7 earthquake than a magnitude 4 earthquake? a. 3 times b. 30 times c. 1000 times D 400 Secondary waves ____ when they hit the liquid outer core. a. slow down b. stay the same c. stop d. speed up D 500 Secondary waves ____ when they hit the liquid outer core. a. slow down b. stay the same c. stop D 500 The slowest seismic waves are ____________________. E 100 surface waves E 100 To locate an earthquake's ___________, scientist use information from three seismograph stations. E 200 epicenter E 200 The San Andreas Fault in California is an example of a(n) ____________________ fault. E 300 strike-slip E 300 The Richter scale is based on the height of the lines traced by a(n) ____________________. E 400 seismograph (or seismogram) E 400 ____________________ move through Earth by causing particles in rocks to move at right angles to the direction of the waves. E 500 Secondary waves E 500 When rocks break because of stress, the energy released is in the form of a(n) ____________________. F 100 earthquake F 100 DAILY Place A Wager DOUBLE F 200 Seismologists use the ________________ to describe the magnitude of earthquakes. F 200 Richter scale F 200 Ash, lava, and _______ erupt from the crater of a volcano. F 300 gases F 300 Two important factors that control whether an eruption will be explosive or quiet are the amount of ______________ and other gases and the amount of ________ in the magma. F 400 water vapor; silica F 400 ____________________ move through Earth by causing particles of rocks to move back and forth in the same direction as the waves. F 500 Primary waves F 500 The Final Jeopardy Category is: Earthquakes Please record your wager. Click on screen to begin How far away is the epicenter if the difference in seismic wave arrival times is 7 minutes? Click on screen to continue 5,500 km Click on screen to continue Thank You for Playing Jeopardy! Game Designed By C. Harr-MAIT Edited By Laura