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






2. Any porous and permeable rock that yields oil or natural gas.






3. A blanket of wind-driven sand with an upper surface about a meter above ground level.






4. To preserve & or to avoid wasteful use.






5. The vertical distance between the crest and adjacent trough of a wave.






6. The reflection of light on a given mineral's surface & classified by intensity and quality.






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






8. The galaxy where Earth is located.






9. Living on land.






10. A floating ice sheet extending across water from a land-based glacier.






11. A narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






12. A large area of flat or nearly flat land.






13. Living on land.






14. 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.






15. A term applied to large areas of basaltic lava presumably extruded from fissures.






16. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.






17. The weak or 'soft' zone in the upper mantle just below the lithosphere & involved in plate movement and isostatic adjustments. It lies 70 to 100 km below the surface and may extend to a depth of 400 km.






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






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






20. 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.






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






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






23. A broad & mound-like mass of glacier ice that usually spreads radially outward from a central zone.






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






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






26. 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.






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






28. A large amount of gas and dust in space & spread out in an immense volume.






29. The galaxy where Earth is located.






30. The partial or complete blocking from view of one object by another.






31. 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.






32. A building that contains one or more telescopes.






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






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






35. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






36. Objects revolving around the sun that are too small and too numerous to be considered planets.






37. 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.






38. Geologic time expressed in years before the present.






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






40. A curved belt of volcanic islands lying above a subduction zone.






41. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






42. A thick layer of soil.






43. Living in water.






44. A building that contains one or more telescopes.






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






46. The method of locating an epicenter by determining how far it lies from three widely separated seismographs.






47. A supercontinent that existed from the the end of the Permian to the Jurassic & 300 to 200 million years ago & assembled from large continents like Euramerica & Gondwana & and Siberia & as well as smaller landmasses like the Cathaysian and Cimmerian






48. Water beneath the Earth's surface.






49. A downward distortion or dimple in the water table that forms as a well pumps water faster than it can flow through the aquifer.






50. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori