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 internal resistance to flow in a liquid.






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






3. An area in which a large number of windmills have been erected to generate electrical power.






4. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita






5. The tectonic region in which two plates meet.






6. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.






7. The persistence of wind-formed waves after wind ceases.






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






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






10. 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.






11. A flat & dry plain covered with short grass.






12. A fracture or zone of fractures along the boundaries of tectonic plates where movement has taken place.






13. 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.






14. Geologic time expressed in years before the present.






15. 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.






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






17. The process of removing metal from ore.






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






19. 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.






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






21. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






22. The very small particles of dirt & soot & and other pollutants that are present in the air.






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






24. A mound or ridge of sediment deposited by a glacier.






25. The weak or 'soft' zone in the upper mantle just below the lithosphere & involved in plate movement and isostatic adjustments. It lies 70 to 100 km below the surface and may extend to a depth of 400 km.






26. The height of a place above sea level.






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






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






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






30. The point on the Earth's surface directly above the focus of an earthquake.






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






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






33. 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.






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






35. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.






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






37. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori






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






39. In a stream & the volume of water passing through a channel in a given time.






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






41. A major drainage divide separating the drainage to one ocean from another.






42. The explosion of a dying giant or supergiant star.






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






44. The most recent eon of geologic time beginning 570 million years ago and continuing to the present.






45. 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.






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






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






48. The process by which ocean floors spread laterally from crests of main ocean ridges. As material moves laterally from the ridge & new material replaces it along the ridge crest by welling upward from the mantle.






49. An eruption of lava that takes place from a fracture & usually without producing a cone.






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