Assessor: James Riley Spring 2012 Assessment Summary ESC/GEL 1300G 002 Introduction to Earth Sciences Students are expected to gain an understanding of Earth’s physical properties – namely the atmosphere, hydrosphere, lithosphere, and Earth’s subsurface – and how these integrated systems influence one another. Students were assessed by administering a pre-test at the beginning of the semester and a posttest at the end of the semester. The questions, included below with the percentage of students who answered the question correctly on the pre- and post-tests, draw on key concepts that are discussed throughout the semester. 1. Lines of _________ encircle the Earth and describe how far north or south a location is from the equator. A. latitude B. longitude C. prime meridians D. base lines Pre-test: 53.57% Post-test: 75.86% 2. Rocks that solidify and crystallize from molten material such as magma and lava are called ________________. A. metamorphic B. igneous C. sedimentary D. stratified Pre-test: 28.57% Post-test: 62.07% 3. Deposition in a meandering river typically occurs at the _________, which is located along the _________ bank of the bend. A. point bar; outer B. point bar; inner C. cut bank; outer D. cut bank; inner Pre-test: 17.86% Post-test: 68.97% 4. In the northern hemisphere, areas of low atmospheric pressure spin _________. A. clockwise B. counter-clockwise C. neither – low pressure does not spin Pre-test: 46.43% Post-test: 37.93% 5. The part of the Earth south of __________ will never receive direct (perpendicular) insolation. A. the Equator B. 23.5° N C. 66.5° N D. 23.5° S E. the Arctic Circle Pre-test: 17.86% Post-test: 41.38% 6. The transfer of heat energy from one molecule to another is referred to as _________. A. convection B. conduction C. albedo D. erosion Pre-test: 60.71% Post-test: 79.31% 7. The Hawaiian Islands were formed by a series of _________ volcanoes. A. composite B. shield C. cinder cone D. all of these Pre-test: 10.71% Post-test: 44.83% Assessor: James Riley 8. __________ is one of the most abundant greenhouse gases in Earth’s atmosphere. A. Nitrogen B. Neon C. Chlorine D. Carbon dioxide E. Helium Pre-test: 75.00% Post-test: 82.76% 9. Earth materials (soil, rock, boulders) deposited across a landscape following the retreat of a continental glacier are known as _________. A. drift B. mass wasting C. discharge D. aquifers Pre-test: 46.43% Post-test: 48.28% 10. A map with a scale of 1:24,000 would be considered to have a _________ when compared to a map with a scale of 1:100,000. A. large scale B. small scale C. planar projection Pre-test: 46.43% Post-test: 72.41% 11. _________ precipitation is a result of air being lifted over a highland area. A. Convective B. Orographic C. Convergence D. Frontal Pre-test: 25.00% Post-test: 41.38% 12. The process in which one tectonic plate is carried beneath another plate is called _________. A. the Coriolis effect B. liquefaction C. conduction D. subduction Pre-test: 64.29% Post-test: 79.31% 13. A warming atmosphere begins to melt glacial ice, revealing more of the underlying Earth. This changes the albedo, which further warms the atmosphere. This scenario is an example of _________ feedback in a system. A. negative B. positive C. dynamic D. steady-state Pre-test: 25.00% Post-test: 55.17% 14. The breakdown of large rocks to smaller particles in place at or near the Earth’s surface is known as _________. A. weathering B. erosion C. metamorphism D. convection Pre-test: 25.00% Post-test: 17.24% 15. Rock falls, rotational and translational slides, and soil creep are examples of _________. A. faulting B. anticlines C. mass movements D. weathering Pre-test: 50.00% Post-test: 48.28% 16. Normal faulting results from compressional stress. A. true B. false Pre-test: 17.86% Post-test: 24.14% 17. Evidence shows the age of the Atlantic Ocean floor is youngest in the middle, at the spreading ridge. A. true B. false Pre-test: 50.00% Post-test: 48.28% Assessor: James Riley 18. Geologists study the Earth predominantly through observation. They assume that the geologic processes have been basically the same through time. This principal is called _________. A. crystal morphography B. quantum mechanics C. uniformitarianism D. geologic stationarity Pre-test: 39.29% Post-test: 58.62% 19. It is thought that there was once a single continent on Earth. Which of the following statements best describes what happened to this continent? A. The Earth lost heat over time and cracked, causing the continent to break into smaller pieces. B. Meteors hit the Earth, causing the continent to break into smaller pieces. C. Only a small number of people believe there was once a single continent, and it is more likely that continents have always been in roughly the same place as they are today. D. Material beneath the continent moved, causing the continent to break into smaller pieces. Pre-test: 67.86% Post-test: 72.41% 20. The figure at right indicates a(n) _________. A. syncline B. basin C. anticline D. dome Pre-test: 25.00% Post-test: 68.97% 21. A granite would form under conditions that included a(n) _________. A. mafic magma cooling near the Earth’s surface B. felsic magma cooling near the Earth’s surface C. mafic magma cooling deep in the subsurface D. felsic magma cooling deep in the subsurface Pre-test: 0.00% Post-test: 10.34% 22. Where do you think glaciers can be found today? A. At the South pole B. In the mountains C. At sea level Pre-test: 71.43% Post-test: 41.38% D. All answers are correct In ESC/GEL 1300G 002, 3 of the 32 students originally enrolled were Geography majors. All of the other students were majors from outside the department. Of the 28 students who completed the pre-test, the average total score was 8.21 (out of 22). The average total score on the post-test, taken by 29 students, was 11.79 for a percentage improvement of nearly 44%.