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 rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.






2. The level of light that penetrates through water.






3. The oldest eon in Earth history & extending from the origin of the Earth to about 3.9 billion years ago.






4. The chronological sequence of units of Earth time.






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






6. The first scientist to make systematic use of the telescope in looking at the heavens.






7. Refers to rock or sediments made up primarily of broken fragments of pre-existing rocks or minerals.






8. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.






9. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






10. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






11. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.






12. A sedimentary rock made up of chemical sediments. Example: rock salt.






13. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.






14. The level of light that penetrates through water.






15. The zone below the zone of aeration in which all pore spaces are filled with water.






16. The vertical distance between the crest and adjacent trough of a wave.






17. The average weather conditions of an area over many years & as measured by temperature & wind speed & and precipitation.






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






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






20. A sea level change due to change in load on Earth's crust.






21. The low spot between two successive waves.






22. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






23. A system that uses a constellation of 24 satellites & their ground stations & and individual GPS receivers to accurately locate points on Earth.






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






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






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






27. Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.






28. A famous scientist who proposed that the Sun was the center of the solar system not the Earth. (Heliocentrism)






29. 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.






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






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






32. A conical volcano formed by the accumulation of pyroclastic debris around a vent.






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






34. Deposition of fine mineral particles (silt) on the beds of streams or lakes.






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






36. 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.






37. 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






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






39. Iron & aluminum & magnesium & manganese & and titanium. Ores of the abundant metals only need to be 3 - 5 times as metal-rich as average rock.






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






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






42. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.






43. Where two plates collide to form mountains.






44. Flat land covered with tall grass and wildflowers.






45. The surface between the zone of saturation and the zone of aeration.






46. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






47. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






48. A sharp bend & loop or turn in a stream's course. When abandoned & it is called a meander scar or an oxbow.






49. A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions. The San Andreas fault of California is a good example.






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