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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 narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






2. A sedimentary rock composed primarily of biogenic sediments.






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






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






5. The chronological sequence of units of Earth time.






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






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






8. 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.






9. 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.






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






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






12. A chuck of rock or dust in space.






13. Ratio between weight of given volume of material and weight of equal volume of pure water.






14. An icicle-shaped accumulation of dripstone hanging from cave roof.






15. The processes of weathering by which physical actions such as frost wedging break down a rock into fragments & involving no chemical change.






16. Of or relating to or containing basalt & a dark & dense & extrusive rock that has a silica content of 40% to 50% and makes up most of the ocean floor.






17. The elevation at which snow persists throughout the year.






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






19. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.






20. The rise and fall of sea level caused by the gravitational pull of the Sun and Moon on the Earth.






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






22. 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.






23. The innermost zone of Earth. It consists of two parts & an outer liquid section and an inner solid section & both chiefly of iron and nickel with about 10 percent lighter elements. It is surrounded by the mantle.






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






25. A device built to study distant objects by making them appear closer.






26. 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.






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






28. A seismic body wave that involves particle motion from side to side & perpendicular to the direction of wave propagation. S-waves are slower than P-waves and cannot travel through a liquid.






29. A depression in the ground formed by the melting of a block of glacier ice buried or partially buried by drift.






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






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






32. The mass of an object divided by its volume.






33. The internal resistance to flow in a liquid.






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






35. The sudden fall of one or more large pieces of a rock from a cliff.






36. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia & Baltica & Avalonia & (modern North America & Scandinavia & Greenland & Western and Central Europe); eventually fragmented into Eur






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






38. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






39. Evidence in rock of the presence of past life & such as a dinosaur bone & an ancient clam shell & or the footprint of a long-extinct animal as well as life history artifacts.






40. A community of plants and/or animals and its physical environment & regarded as a unit.






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






42. 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.






43. 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.






44. The line that separates one drainage basin from another.






45. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






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






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






48. The closest star to Earth besides the sun. It is approximately 4 light years away.






49. A tool for measuring the relative clarity of water.






50. Gases (primarily water and carbon dioxide & but also a variety of sulfur and nitrogen compounds and gaseous hydrocarbons) that trap the Sun's heat in the atmosphere.






Can you answer 50 questions in 15 minutes?



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