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






2. Mountains & characterized by extensive folding and thrust faulting & that form at convergent plate boundaries on continents.






3. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.






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






5. To preserve & or to avoid wasteful use.






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






7. The layer of gases (air) & that surrounds a planet or moon.






8. Soil conditions prevailing in area whose mean annual temperature is 0o C.






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






10. No identifiable layers of minerals in a rock sample






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






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






13. 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.






14. The method of locating an epicenter by determining how far it lies from three widely separated seismographs.






15. Synonym of intrusive. Antonym of volcanic. Applies to igneous rocks formed beneath the surface of the Earth; typically with large crystals due to the slowness of cooling.






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






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






18. An eon of geologic time extending from about 3.9 billion years to 2.5 billion years ago.






19. Forms along a coast as wave erosion cuts through a headland.






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






21. 1. A low & bowl-shaped area of land surrounded by higher lands. 2. any large depression in which sediments are deposited.






22. An instrument that detects & magnifies & and records vibrations of the Earth & especially earthquakes.






23. The rigid outer shell of the Earth. It includes the crust and uppermost mantle and is on the order of 100 km in thickness.






24. Flat land covered with tall grass and wildflowers.






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






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






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






28. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






29. 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.






30. The process by which building stone & usually in blocks or sheets & is extracted from the Earth. radiation -- (Electromagnetic radiation) -- energy that travels through space in the form of waves without the intervention of matter & as in the transp






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






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






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






34. Flat land covered with tall grass and wildflowers.






35. 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.






36. A measure of acidity.






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






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






39. 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.






40. Forms along a coast as wave erosion cuts through a headland.






41. A post of dripstone growing up from a cave floor.






42. The closest galaxy to the Milky way. It is approximately 2 million light-years away.






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






44. The presence of layers in some rocks caused by parallel alignment of minerals.






45. 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.






46. 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.






47. The process by which a binding & or cementing & agent is precipitated in spaces among individual particles of a deposit. Common cementing agents are calcite & quartz & and dolomite.






48. The distance light travels through a vacuum in one year.






49. The upper horizons in a soil & through which gravitational moisture travels & removing soluble decomposition products.






50. The primary division of geologic time which are & from oldest to youngest & the Hadean & Archean & Proterozoic & and Phanerozoic eons.