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






2. The amount of material a stream carries in suspension.






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






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






5. The precipitation that runs directly off the surface to stream or body of standing water.






6. 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.






7. The two days of the year on which the noon sun is directly overhead at either 23.5






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






9. A coral reef separated from the mainland by a lagoon.






10. 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.






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






12. Pluto is named after the Roman god of the Underworld. No longer considered a planet.






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






14. An imaginary circle around the earth that represents the halfway mark between the North and South Poles and establishes the boundary between the Northern and Southern Hemispheres.






15. Any place where bedrock is visible on the surface of the Earth.






16. A cavity in a lava & formed by the entrapment of a gas bubble during solidification of the lava.






17. Living in water.






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






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






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






21. The current geologic era & which began 66.4 million years ago and continues to the present.






22. A protective wall built offshore and usually parallel to the shore.






23. The internal resistance to flow in a liquid.






24. The seaward edge of coast between low tide and effective wave action.






25. 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






26. A collection of maps.






27. A molecule composed of three atoms of oxygen and mostly found in the stratosphere. Though beneficial in the upper atmosphere & at ground level & ozone is called photochemical smog & and is a respiratory irritant and considered a pollutant.






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






29. Where two plates collide to form mountains.






30. 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.






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






32. A waste material that contaminates air & water & or soil.






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






34. Bent rock strata.






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






36. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






37. A large ridge or mound-like structure within a body of water that is built by calcareous organisms such as corals & red algae & and bivalves.






38. The galaxy where Earth is located.






39. A study designed to collect critical data to be used for comparison or as a control in a later study.






40. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






41. A natural depression in the surface of the land caused by the collapse of the roof of a cavern or subterranean passage & generally occurring in limestone regions.






42. The partial or complete blocking from view of one object by another.






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






44. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.






45. 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.






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






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






48. A term applied to large areas of basaltic lava presumably extruded from fissures.






49. A time of unusual winds and currents in the Pacific Ocean . El Nino generally causes warmer-than-normal sea surface temperatures and increased rainfall and storm activity.






50. A waterway from open ocean into a lagoon.