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 device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.






2. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






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






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






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






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






7. Plutonic. Antonym of extrusive. Pertaining to igneous rocks or features formed by the emplacement of magma in pre-existing rocks.






8. 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 &






9. Jupiter is named after the Roman king of the gods. It is the fifth planet from the Sun.






10. To change back and forth uncertainly.






11. A sedimentary rock composed primarily of biogenic sediments.






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






13. 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.






14. The line separating land and water.






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






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






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






18. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.






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






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






21. The chronological sequence of units of Earth time.






22. A hydrocarbon (coal or petroleum) that can be extracted from the Earth for use as a fuel. Fossil fuels are non-renewable energy sources.






23. Woodland that usually gets at least 100 inches of rain each year.






24. Materials that are found in nature that are useful or necessary for people to live.






25. An individual grain or constituent of a rock.






26. A Hawaiian term for a basaltic lava flow with a smooth & or ropy surface.






27. The accumulation of material in layers or beds.






28. A zone in the Earth between 400 and 670 km below the surface separating the upper mantle from the lower mantle.






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






30. A general term for a relatively hard layer of soil at or just below the ground surface & cemented by silica & iron oxide & calcium carbonate & or organic matter.






31. Gases that can be dissociated by solar radiation & which releases chlorine & which in turn destroys ozone.

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32. The effect of water and carbon dioxide absorbing outgoing infrared radiation & raising a system's temperature. The term is generally used with reference to the Earth's temperature & although it can also be applied to other systems & such as greenhous






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. A coral reef attached directly to the mainland.






35. Sediments produced directly by the life processes of plants or animals.






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






37. A wall built out from the shore & usually at perpendicular to it to trap sand carried by longshore currents .






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






39. Living on land.






40. A narrow strip of land that has water on either side and connects two larger bodies of water.






41. 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






42. The point on the Earth's surface where a magnetic needle points vertically downward (north magnetic pole) or vertically upward (south magnetic pole).






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






44. A rock changed from its original form and/or composition by heat & pressure &shearing stress & or chemically active fluids & or some combination of them.






45. A commonly used measure of earthquake magnitude & based on a logarithmic scale. Each integral step on the scale represents a tenfold increase in the extent of ground shaking & as recorded on a seismograph.






46. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.






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






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






49. The formation & advance and retreat of glaciers and the results of these activities.






50. 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.