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 rock that has crystallized from a molten state.






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






3. A large area with common features that set it apart from other areas.






4. A Hawaiian term for a lava flow that has a rough & jagged surface.






5. A cyclical pattern of movement in a fluid body such as the ocean & the atmosphere & or the Earth's mantle & driven by density variations which in turn are the result of differences in temperature from one part of the fluid to another.






6. A steep or vertical cliff & either above or below sea level.






7. Living in water.






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






9. Any place where bedrock is visible on the surface of the Earth.






10. The process by which a binding & or cementing & agent is precipitated in spaces among individual particles of a deposit. Common cementing agents are calcite & quartz & and dolomite.






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






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






13. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.






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






15. The process of one plate descending beneath another.






16. A device built to study distant objects by making them appear closer.






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






18. The sudden fall of one or more large pieces of a rock from a cliff.






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






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






21. An abandoned meander .






22. The line that separates one drainage basin from another.






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






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






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






26. A pillar formed as a stalactite and stalagmite meet.






27. Living parts of the environment that can renew or replace themselves.






28. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.






29. The very slow & generally continuous downslope movement of soil and debris under the influence of gravity.






30. A steep-sided rounded extrusion of highly viscous lava squeezed out from a volcano and forming a dome-shaped or bulbous mass above and around the volcanic vent. The structure generally develops inside a volcanic crater.






31. 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.






32. A building that contains one or more telescopes.






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






34. 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.






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






36. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






37. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.






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






39. The theory of Plate Tectonics states that the Earth's crust is fragmented into a dozen or more large and small pieces floating on a semi-molten mantle.






40. A guide to reading a map that typically contains distance scales & arrows indicating direction & and/or explanations of symbols used.






41. An imaginary circle around the earth that represents the halfway mark between the North and South Poles and establishes the boundary between the Northern and Southern Hemispheres.






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






43. An artificial hill formed by the debris of successive human settlements.






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






45. The amount of dissolved salt in water.






46. The effect of water and carbon dioxide absorbing outgoing infrared radiation & raising a system's temperature. The term is generally used with reference to the Earth's temperature & although it can also be applied to other systems & such as greenhous






47. The height of a place above sea level.






48. An area of land that delivers runoff water & sediment & and dissolved substances to surface water bodies & such as rivers or lakes. All watersheds consist of boundaries & a basin and collection areas.






49. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.






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