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






2. Living in water.






3. The environment where a particular plant or animal is normally found.






4. Pertaining to or composed of granite & a coarse-grained igneous rock dominated by light-colored minerals & consisting of about 50 percent orthoclase & 25 percent quartz & and balance of feldspars and ferromagnesian silicates. Granite is commonly foun






5. To preserve & or to avoid wasteful use.






6. A Hawaiian term for a lava flow that has a rough & jagged surface.






7. 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.






8. The process by which an unconsolidated deposit of sediments is converted in to solid rock.






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






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






11. A glaciated valley now flooded by the sea.






12. 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.






13. The zones of seismic activity long which plates are in contact.






14. A substance that produces negatively charged hydroxide ions ( OH- ) in water and reacts with acids to form salts.






15. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






16. 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.






17. A group of islands; an expanse of water with scattered islands.






18. The portion of the continental margin that lies between the abyssal plain and the continental slope. The continental rise is underlain by crustal rocks of the ocean basin.






19. The production of living matter by organisms that make food using sunlight or chemicals. Usually expressed as grams of carbon per square meter per year.






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






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






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






23. The line separating land and water.






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






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






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






27. An accumulation of wind driven sand into a distinctive shape.






28. All unconsolidated materials above bedrock. Natural earthy materials on the Earth's surface & in places modified or even made by human activity & containing living matter & and supporting or capable of supporting plants out of doors.






29. Where two plates are moving in opposite directions as in a mid-ocean ridge.






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






31. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






32. Any natural concentration of a valuable material in the Earth's crust & whether that material can be extracted profitably or not.






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 substance that produces positively charged hydrogen ions (H+) when dissolved in water.






35. An informal term to include all geologic time from the beginning of the Earth to the beginning of the Cambrian period 570 million years ago.






36. The internal resistance to flow in a liquid.






37. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






38. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.






39. A collection of maps.






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






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






42. A group of islands; an expanse of water with scattered islands.






43. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.






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






45. An area where fresh water comes into contact with seawater & usually in a partly enclosed coastal body of water; a mix of fresh and salt water where the current of a stream meets the tides.






46. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






47. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.






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






49. The environment where a particular plant or animal is normally found.






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