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 valley caused by extension of the Earth's crust. Its floor forms as a portion of the crust moves downward along normal faults.






2. 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






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






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






5. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






6. The point on the Earth's surface directly above the focus of an earthquake.






7. No identifiable layers of minerals in a rock sample






8. The way in which a rock or mineral breaks in random patterns rather than cleaving






9. He area from which a stream and its tributaries receives its water.






10. 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.






11. In a stream & the volume of water passing through a channel in a given time.






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






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






14. An accumulation of wind driven sand into a distinctive shape.






15. An individual grain or constituent of a rock.






16. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






17. A building that contains one or more telescopes.






18. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.






19. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






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






21. 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






22. Shapes & like mountains or hills that make up the Earth's surface.






23. The average weather conditions of an area over many years & as measured by temperature & wind speed & and precipitation.






24. Similar to a groin but built to keep sand out of a harbor entrance.






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






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






27. A building that contains one or more telescopes.






28. A flat & dry plain covered with short grass.






29. Gases that can be dissociated by solar radiation & which releases chlorine & which in turn destroys ozone.

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30. The mass of an object divided by its volume.






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






32. A commonly used scale of earthquake intensity.






33. A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions. The San Andreas fault of California is a good example.






34. A slide involving a downward and usually sudden movement of newly detached segments of bedrock sliding or slipping over an inclined surface of weakness such as a bedding plane & fault plane & or joint surface.






35. An area where fresh water comes into contact with seawater & usually in a partly enclosed coastal body of water; a mix of fresh and salt water where the current of a stream meets the tides.






36. 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.






37. The peak flow of water that tops the banks of a stream channel.






38. A collection of maps.






39. The way in which a rock or mineral breaks in random patterns rather than cleaving






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






41. A sedimentary rock made up of chemical sediments. Example: rock salt.






42. Mountains & characterized by extensive folding and thrust faulting & that form at convergent plate boundaries on continents.






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






44. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia & Baltica & Avalonia & (modern North America & Scandinavia & Greenland & Western and Central Europe); eventually fragmented into Eur






45. The sum of the processes that result in the wearing away or the progressive lowering of the Earth's surface by weathering & erosion & mass wasting & and transportation.






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






47. Deposition of fine mineral particles (silt) on the beds of streams or lakes.






48. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






49. The physical & chemical & and biological processes by which rock at or near the Earth's surface is broken down into smaller pieces.






50. The physical & chemical & and biological processes by which rock at or near the Earth's surface is broken down into smaller pieces.