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. The internal resistance to flow in a liquid.






2. The distance between two successive wave crests or troughs.






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






4. A ridge of high water associated with a hurricane and which floods over the shore .






5. The process by which building stone & usually in blocks or sheets & is extracted from the Earth. radiation -- (Electromagnetic radiation) -- energy that travels through space in the form of waves without the intervention of matter & as in the transp






6. The green pigment in the cells of many plants that enables them to use sunlight to convert carbon dioxide and water into carbohydrates in the process called photosynthesis.






7. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






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






9. A community of plants and/or animals and its physical environment & regarded as a unit.






10. Till deposited from main body of glacier during ablation.






11. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






12. A large & basin-shaped volcanic depression & more or less circular in form. Typically steep-sided & found at the summit of a shield volcano.






13. A segment of an active fault zone that has not experienced a major earthquake during a time period when most other segments of the zone have. They are generally regarded as having a higher potential for future earthquakes.






14. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.






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






16. Distance over which wave-forming winds blow.






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






18. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.






19. Weathering processes that are the result of chemical reactions. Example: the transformation of orthoclase to kaolinite.






20. Lacking in rainfall & very dry.






21. The transformation of a soil from a solid to a liquid state as the result of increased pore pressure.






22. (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.






23. The very small particles of dirt & soot & and other pollutants that are present in the air.






24. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






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






26. A vertical conduit through the Earth's crust below a volcano & through Which magma has passed.






27. A commonly used scale of earthquake intensity.






28. A layer of sedimentary rock; plural is strata.






29. Any seismic wave that travels through the body of Earth & rather than along its surface.






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






31. The closest galaxy to the Milky way. It is approximately 2 million light-years away.






32. Any solid material that has settled out of a state of suspension in liquid.






33. The closest star to Earth besides the sun. It is approximately 4 light years away.






34. A sedimentary rock composed of combustible matter derived from the partial decomposition of plant material.






35. A time of unusual winds and currents in the Pacific Ocean . El Nino generally causes warmer-than-normal sea surface temperatures and increased rainfall and storm activity.






36. An instrument that detects & magnifies & and records vibrations of the Earth & especially earthquakes.






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






38. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






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






40. A narrow & steep-walled depression in the ocean floor & much deeper than the adjacent ocean and associated with a subduction zone.






41. That portion of the resources for a valuable mineral commodity that can be extracted from the Earth at a profit today.






42. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita






43. 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.






44. A general term including both oil and natural gas.






45. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






46. 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.






47. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.






48. The relationship between distances in the area being mapped and distances in the map itself.






49. The two days of the year on which the noon sun is directly overhead at either 23.5






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