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Earth Science

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A floating ice sheet extending across water from a land-based glacier.






2. An instrument that merely indicates the occurrence of an earthquake.






3. The science that deals with the study of the planet Earth--the materials of which it is made & the processes that act to change these materials from one form to another & and the history recorded by these materials; the forces acting to deform the ou






4. Pertaining to or composed of granite & a coarse-grained igneous rock dominated by light-colored minerals & consisting of about 50 percent orthoclase & 25 percent quartz & and balance of feldspars and ferromagnesian silicates. Granite is commonly foun






5. The point on the Earth's surface that is directly above the focus of an earthquake.






6. The seaward edge of coast between low tide and effective wave action.






7. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.






8. No identifiable layers of minerals in a rock sample






9. Evidence in rock of the presence of past life & such as a dinosaur bone & an ancient clam shell & or the footprint of a long-extinct animal as well as life history artifacts.






10. Turbulent stream water flow down a steep gradient & but not as steep as in a waterfall.






11. A period of dryness & that when prolonged & causes damage to crops; a shortage of water.






12. A wall built out from the shore & usually at perpendicular to it to trap sand carried by longshore currents .






13. The most recent eon of geologic time beginning 570 million years ago and continuing to the present.






14. A post of dripstone growing up from a cave floor.






15. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.






16. A waste material that contaminates air & water & or soil.






17. Pertaining to clastic material formed by volcanic explosion or aerial expulsion from a volcanic vent.






18. Elongated rises on the ocean floor where basalt periodically erupts & forming new oceanic crust.






19. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.






20. Materials that are found in nature that are useful or necessary for people to live.






21. A ball of ice and dust & whose orbit is a long & narrow ellipse.






22. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.






23. A rock that has crystallized from a molten state.






24. Ratio between weight of given volume of material and weight of equal volume of pure water.






25. In the geologic time scale a unit of time less than an era and greater than an epoch. Example: The Tertiary period was the earliest period in the Cenozoic era and included & among others & the Eocene epoch.






26. A person who makes maps.






27. A minor tremor that precedes an earthquake. An increase in seismicity may signal that a major release of strain energy is about to occur.






28. A term applied to large areas of basaltic lava presumably extruded from fissures.






29. The resistance of a mineral to scratching & as measured by the Mohs scale.






30. A type of thermal spring which ejects water intermittently with considerable force.






31. A general term for a relatively hard layer of soil at or just below the ground surface & cemented by silica & iron oxide & calcium carbonate & or organic matter.






32. A tool for measuring the relative clarity of water.






33. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.






34. Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.






35. Objects revolving around the sun that are too small and too numerous to be considered planets.






36. A building that contains one or more telescopes.






37. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.






38. A river that is able to maintain its flow through a desert because of water received from outside the desert.






39. Lies half way between the north and south magnetic poles.






40. The remains of an extremely massive star pulled into a small volume by the force of gravity.






41. The remains of an extremely massive star pulled into a small volume by the force of gravity.






42. A narrow strip of land that has water on either side and connects two larger bodies of water.






43. The presence of layers in some rocks caused by parallel alignment of minerals.






44. The formation & advance and retreat of glaciers and the results of these activities.






45. The process of removing metal from ore.






46. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






47. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






48. A worldwide change in sea level & such as caused by melting glaciers.






49. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.






50. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.







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