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. Molten rock & containing dissolved gases and suspended solid particles. At the Earth's surface & magma is known as lava.






2. A depression in the ground formed by the melting of a block of glacier ice buried or partially buried by drift.






3. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






4. Heat transport by direct transfer of energy from one particle to another & without moving the particle to a new location.






5. A hot & gaseous & self-luminous celestial body & as the Sun.






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






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. 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






9. 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.






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






11. Produced as a wave steepens and falls forward as the wave nears the shore.






12. A rock that has crystallized from a molten state.






13. 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.






14. A measure of the size of an earthquake in terms of the damage it causes.






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






16. The southern portion of the late Paleozoic supercontinent known as Pangea. It means & literally 'Land of the Gonds' (a people of the Indian subcontinent).The supercontinent existed from Cambrian to Jurassic time & mainly composed of South America &






17. A person who makes maps.






18. A thick layer of soil.






19. A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned & the topmost layer is always the youngest and the bottommost layer is always the oldest.






20. Scratches & or small channels & gouged by glacier action. Occur on boulders & pebbles & and bedrock. Striations along bedrock indicate direction of ice movement.






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






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






23. 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.






24. 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.






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






26. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






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






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






29. A river that is able to maintain its flow through a desert because of water received from outside the desert.






30. A ridge of high water associated with a hurricane and which floods over the shore .






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






32. 1. A mass of sand & gravel & or alluvium deposited on the bed of a stream & sea & or lake & or at the mouth of a stream 2. A unit of pressure & approximately equal to atmospheric pressure at sea level.






33. In the geologic time scale a unit of time less than an era and greater than an epoch. Example: The Tertiary period was the earliest period in the Cenozoic era and included & among others & the Eocene epoch.






34. 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






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






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






37. The line separating land and water.






38. A famous scientist who proposed that the Sun was the center of the solar system not the Earth. (Heliocentrism)






39. Soil conditions prevailing in area whose mean annual temperature is 0o C.






40. Temporary accumulations of sediments that collect between low and high water marks.






41. Water beneath the Earth's surface.






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






43. A sedimentary rock composed primarily of biogenic sediments.






44. The closest star to Earth besides the sun. It is approximately 4 light years away.






45. Deep steep-sided depression in the ocean floor caused by the subduction of oceanic crust beneath either other oceanic crust or continental crust.






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






47. The most recent eon of geologic time beginning 570 million years ago and continuing to the present.






48. A building that contains one or more telescopes.






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






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