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. A volcano that is composed of alternating layers of lava and pyroclastic material & along with abundant dikes and sills. Viscous & intermediate lava may flow from a central vent. Example: Mt. Fuji in Japan.






2. The areas of & in & or constituting a city.






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






4. 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.






5. A type of thermal spring which ejects water intermittently with considerable force.






6. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.






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






8. An earthquake that follows and has its epicenter near a larger earthquake.






9. The height of a place above sea level.






10. Sediment formed by chemical precipitation from water. Example: halite precipitated as the result of the evaporation of sea water.






11. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.






12. 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.






13. Any seismic wave that travels through the body of Earth & rather than along its surface.






14. The principle that states the processes operating to change the Earth in the present also operated in the past.






15. The generally dark & more or less stable part of the organic matter in a soil & so well decomposed that the original sources cannot be identified.






16. Bent rock strata.






17. A process by which salts accumulate in soil.






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






19. A vent on the seafloor from which hydrothermal fluids are emitted. Upon mixing with seawater and cooling & the fluids precipitate a cloud of fine-grained sulfide minerals that resembles a cloud of black smoke.






20. The area bordering a stream over which water spreads when the stream tops its channel banks.






21. The process of mountain building.






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






23. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






24. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






25. The tectonic region in which two plates meet.






26. Deposits of wind-borne dust.






27. Distance over which wave-forming winds blow.






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






29. 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 .






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






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






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






33. The distance between two successive wave crests or troughs.






34. The process of removing metal from ore.






35. Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. Longitude lines extend vertically & from pole to pole on a globe.






36. Of or relating to or containing basalt & a dark & dense & extrusive rock that has a silica content of 40% to 50% and makes up most of the ocean floor.






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






38. Lava extruded beneath water characterized by pillow shapes.






39. Till deposited from main body of glacier during ablation.






40. The chronological sequence of units of Earth time.






41. Mercury is named after the Roman messenger of the gods. It is the closest to the Sun.






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






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






44. A narrow & elongate region in which one lithospheric plate descends relative to another.






45. A planetary satellite.






46. The top of a wave.






47. A vent in the surface of the Earth & from which lava & ash & and gases erupt.






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






49. The principle that states the processes operating to change the Earth in the present also operated in the past.






50. 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.