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. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






2. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






3. The process by which ocean floors spread laterally from crests of main ocean ridges. As material moves laterally from the ridge & new material replaces it along the ridge crest by welling upward from the mantle.






4. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.






5. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.






6. The study of earthquakes & and of the structure of the Earth by both natural and artificially generated seismic waves.






7. Woodland that usually gets at least 100 inches of rain each year.






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






9. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.






10. The initial point within the Earth that ruptures in an earthquake & directly below the epicenter. The point within the Earth which is the center of an earthquake & at which strain energy is first released and converted to elastic wave energy.






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






12. Reduction of pore space between individual particles as the result of overlying sediments or of tectonic movements.






13. Surficial mining & in which the valuable rock is exposed by removal of overlying rock or soil.






14. Verifying assessments made from satellite data by doing direct & 'on-the ground' measurements.






15. The two days of the year on which neither hemisphere is tilted toward or away from the sun.






16. A sedimentary rock composed primarily of biogenic sediments.






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






18. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






19. The environment where a particular plant or animal is normally found.






20. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






21. To preserve & or to avoid wasteful use.






22. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






23. The zones of seismic activity long which plates are in contact.






24. The rise and fall of sea level caused by the gravitational pull of the Sun and Moon on the Earth.






25. To wash or scrub away.






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






27. A natural depression in the surface of the land caused by the collapse of the roof of a cavern or subterranean passage & generally occurring in limestone regions.






28. The solid innermost part of the core with a diameter of a little over 1 &200 km.






29. (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.






30. The persistence of wind-formed waves after wind ceases.






31. The accumulation of material in layers or beds.






32. Gases (primarily water and carbon dioxide & but also a variety of sulfur and nitrogen compounds and gaseous hydrocarbons) that trap the Sun's heat in the atmosphere.






33. A sharp bend & loop or turn in a stream's course. When abandoned & it is called a meander scar or an oxbow.






34. The process of mountain building.






35. A spring whose temperature is 6.5o C or more above mean annual air temperature.






36. A coral reef attached directly to the mainland.






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






38. Igneous. Antonym of intrusive. Synonym of volcanic. Pertaining to igneous rocks or features formed from lava released on the Earth's surface.






39. The outermost part of the core. It is liquid & about 1 &700 km thick & and separated from the inner & solid core by a transition zone about 565 km thick.






40. A sea wave produced by any large-scale & short duration disturbance on the seafloor & commonly a shallow submarine earthquake but possibly also a submarine slide or volcanic eruption.






41. Living on land.






42. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.






43. A coral reef separated from the mainland by a lagoon.






44. Geologic time expressed in years before the present.






45. A collection of maps.






46. The top of a wave.






47. A reverse fault on which the dip angle of the fault plane is 15 degrees or less.






48. The generally dark & more or less stable part of the organic matter in a soil & so well decomposed that the original sources cannot be identified.






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






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