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 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 &






2. To preserve & or to avoid wasteful use.






3. The outermost layer of the Earth & varying in thickness from about 10 kilometers (6 miles) below the oceans & to 65 kilometers (about 40 miles) below the continents; represents less than 1 percent of the Earth's volume.






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






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






6. A unit of length used in sea navigation based on the length of 1 minute of arc on a great circle. On Earth & 1 minute of latitude.






7. Banks of sand and silt along stream bank built by deposition in small increments during successive floods.






8. The region of a shore that is covered at high tide and exposed at low tide.






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






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






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






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






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






14. The transformation of a soil from a solid to a liquid state as the result of increased pore pressure.






15. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.






16. The presence of layers in some rocks caused by parallel alignment of minerals.






17. Lies half way between the north and south magnetic poles.






18. The process by which building stone & usually in blocks or sheets & is extracted from the Earth. radiation -- (Electromagnetic radiation) -- energy that travels through space in the form of waves without the intervention of matter & as in the transp






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






20. A coral reef attached directly to the mainland.






21. The rigid outer shell of the Earth. It includes the crust and uppermost mantle and is on the order of 100 km in thickness.






22. Heat extracted from the Earth for use as an power source.






23. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.






24. Banks of sand and silt along stream bank built by deposition in small increments during successive floods.






25. A permeable region of rock or soil through which ground water can move.






26. The science that deals with the study of the planet Earth--the materials of which it is made & the processes that act to change these materials from one form to another & and the history recorded by these materials; the forces acting to deform the ou






27. 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.






28. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






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






30. 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






31. 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.






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






33. 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.






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






35. An ingredient in a food or other substance that nourishes or promotes growth.






36. An informal term to include all geologic time from the beginning of the Earth to the beginning of the Cambrian period 570 million years ago.






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






38. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






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






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






41. A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions. The San Andreas fault of California is a good example.






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






43. The primary division of geologic time which are & from oldest to youngest & the Hadean & Archean & Proterozoic & and Phanerozoic eons.






44. Occurs at the intersection of the water table with the ground surface.






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






46. A sedimentary rock made up of chemical sediments. Example: rock salt.






47. A sharp bend & loop or turn in a stream's course. When abandoned & it is called a meander scar or an oxbow.






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






49. Heat extracted from the Earth for use as an power source.






50. A chuck of rock or dust in space.