Test your basic knowledge |

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 narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






2. A sea level change due to change in load on Earth's crust.






3. The surface between the zone of saturation and the zone of aeration.






4. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






5. Destruction of the ozone layer caused by the release of CFC's (chlorofluorocarbons) into the atmosphere which react chemically with ozone and break it down into different gases.






6. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






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






8. The explosion of a dying giant or supergiant star.






9. 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






10. The process by which an unconsolidated deposit of sediments is converted in to solid rock.






11. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






12. Banks of sand and silt along stream bank built by deposition in small increments during successive floods.






13. The precipitation that runs directly off the surface to stream or body of standing water.






14. No identifiable layers of minerals in a rock sample






15. The elevation at which snow persists throughout the year.






16. The zone below the zone of aeration in which all pore spaces are filled with water.






17. The processes (mechanical and chemical) responsible for the wearing away & loosening & and dissolving of materials of the Earth's crust.






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






19. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.






20. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.






21. Deposits of wind-borne dust.






22. Where one plate slides beneath another plate as the two are pushed together & a subduction zone.






23. The arrangement of rock units in the proper chronological order from youngest to oldest.






24. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






25. A type of volcanic eruption characterized by nuees ardentes and the development of lava domes.






26. A flood that rises and falls very rapidly.






27. 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.






28. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.






29. Synonym of intrusive. Antonym of volcanic. Applies to igneous rocks formed beneath the surface of the Earth; typically with large crystals due to the slowness of cooling.






30. 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.






31. The speed at which water flows.






32. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.






33. A lake of lava & usually basaltic & in a volcanic caldera.






34. A sea level change due to change in load on Earth's crust.






35. A hydrocarbon (coal or petroleum) that can be extracted from the Earth for use as a fuel. Fossil fuels are non-renewable energy sources.






36. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.






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






38. A chuck of rock or dust in space.






39. A zone in the Earth between 400 and 670 km below the surface separating the upper mantle from the lower mantle.






40. A disease-causing organism or entity & such as a bacterium or virus.






41. The surface between the zone of saturation and the zone of aeration.






42. Refers to rock or sediments made up primarily of broken fragments of pre-existing rocks or minerals.






43. Lava extruded beneath water characterized by pillow shapes.






44. Water beneath the Earth's surface.






45. Living in water.






46. The accumulation of material in layers or beds.






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






48. A waterway from open ocean into a lagoon.






49. An area in which a large number of windmills have been erected to generate electrical power.






50. The arrangement of rock units in the proper chronological order from youngest to oldest.