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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. An icicle-shaped accumulation of dripstone hanging from cave roof.






2. 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






3. An era of geologic time lasting from 570 to 245 million years ago.






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






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






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






7. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






8. Lava extruded beneath water characterized by pillow shapes.






9. Forms along a coast as wave erosion cuts through a headland.






10. Any form of water & such as rain & sleet & or snow & that falls to Earth's surface.






11. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






12. A giant structure that contains hundreds of billions of stars.






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






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






15. 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.






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






17. Where two plates collide to form mountains.






18. The processes of weathering by which physical actions such as frost wedging break down a rock into fragments & involving no chemical change.






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






20. An individual grain or constituent of a rock.






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






22. A measure of acidity.






23. 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.






24. Swamp that forms in the low lying flood plain behind a levee.






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






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






27. The uprush of a wave onto the beach followed by the return flow of the water down the beach slope in the intervals between waves.






28. An area subject to dust storms & especially south central United States .






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






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






31. Extending across a continent.






32. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.






33. 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'.






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






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






36. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.






37. Any natural concentration of a valuable material in the Earth's crust & whether that material can be extracted profitably or not.






38. Living in water.






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






40. Formed when an organism is flattened (compressed) and a thin film of organic material from its body is left in the rock.






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






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






43. The Sun with all the celestial bodies that revolve around it.






44. 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






45. A general term including both oil and natural gas.






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






47. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.






48. The amount of material a stream carries in suspension.






49. A giant structure that contains hundreds of billions of stars.






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







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