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






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






4. (Latin- Sol & Greek- Helios)the closest star to Earth. It is a giant ball of gas without any solid surface.






5. Geologic time expressed in years before the present.






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






7. The accumulation of material in layers or beds.






8. To change back and forth uncertainly.






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






10. 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.






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






12. A process of erosion in which wind carries off particles of dust and sand.






13. Distance over which wave-forming winds blow.






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






15. 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.






16. Extending across a continent.






17. The top of a wave.






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






19. That portion of the Earth below the crust and reaching to about 2 &780 km & where a transition zone of about 100 km thickness separates it from the core.






20. The line separating land and water.






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






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






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






24. A substance that produces negatively charged hydroxide ions ( OH- ) in water and reacts with acids to form salts.






25. (Latin- Sol & Greek- Helios)the closest star to Earth. It is a giant ball of gas without any solid surface.






26. 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






27. Turbulent stream water flow down a steep gradient & but not as steep as in a waterfall.






28. A mound or ridge of sediment deposited by a glacier.






29. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






30. A rock changed from its original form and/or composition by heat & pressure &shearing stress & or chemically active fluids & or some combination of them.






31. Living in water.






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






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






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






35. Containing moisture.






36. No identifiable layers of minerals in a rock sample






37. Long narrow beaches separated in many places from the mainland by lagoons.






38. A division of geologic time next smaller than the eon and larger than a period. Example: The Paleozoic era is in the Phanerozoic eon and includes & among others & the Devonian period.






39. 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.






40. Fossils formed when water containing minerals leaks into a mold. The minerals harden to form a copy of the original structure or organism.






41. The amount of dissolved salt in water.






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






43. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






44. A lake in an abandoned meander.






45. All of space and everything in it.






46. 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






47. The line formed by the intersection of the axial plane of a fold with a bedding plane & marking where the bed shows its maximum curvature.






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






49. The speed at which water flows.






50. An abandoned meander .