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 worldwide change in sea level & such as caused by melting glaciers.






2. 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.






3. Reduction of pore space between individual particles as the result of overlying sediments or of tectonic movements.






4. Named after the Roman god of the sea. It is the eighth planet from the Sun.






5. To change back and forth uncertainly.






6. 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.






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






8. A commonly used scale of earthquake intensity.






9. Igneous. Antonym of intrusive. Synonym of volcanic. Pertaining to igneous rocks or features formed from lava released on the Earth's surface.






10. Long narrow beaches separated in many places from the mainland by lagoons.






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






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






13. The line separating land and water.






14. A type of volcanic eruption characterized by nuees ardentes and the development of lava domes.






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






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






17. The point on the Earth's surface that is directly above the focus of an earthquake.






18. The internal resistance to flow in a liquid.






19. 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.






20. Lacking in rainfall & very dry.






21. An individual grain or constituent of a rock.






22. 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.






23. A reverse fault on which the dip angle of the fault plane is 15 degrees or less.






24. The amount of dissolved salt in water.






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






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






27. Elongated rises on the ocean floor where basalt periodically erupts & forming new oceanic crust.






28. Open pit mining & typically for coal.






29. The theory of Plate Tectonics states that the Earth's crust is fragmented into a dozen or more large and small pieces floating on a semi-molten mantle.






30. Heat transport by moving particles & and the thermal energy that they carry & to a new location.






31. A steep or vertical cliff & either above or below sea level.






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






33. A period of dryness & that when prolonged & causes damage to crops; a shortage of water.






34. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.






35. Deserts formed by blocking moisture-bearing winds with mountain barriers.






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






37. 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.






38. A thick layer of soil.






39. Living in water.






40. A blanket of wind-driven sand with an upper surface about a meter above ground level.






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






42. The dust-sized & sharp-edged & glassy particles resulting from an explosive volcanic eruption.






43. Any accumulation of material & by settling from water or air & chemical precipitation & evaporation from solution & etc.






44. Igneous. Antonym of intrusive. Synonym of volcanic. Pertaining to igneous rocks or features formed from lava released on the Earth's surface.






45. To preserve & or to avoid wasteful use.






46. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.






47. Any porous and permeable rock that yields oil or natural gas.






48. The height of a place above sea level.






49. The relationship between distances in the area being mapped and distances in the map itself.






50. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.