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






2. A downward distortion or dimple in the water table that forms as a well pumps water faster than it can flow through the aquifer.






3. The process of mountain building.






4. A term applied to large areas of basaltic lava presumably extruded from fissures.






5. 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.






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






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






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






9. A ridge of high water associated with a hurricane and which floods over the shore .






10. A type of disintegration in which jointed rock is forced apart by the expansion of water as it freezes in fractures.






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






12. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






13. A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned & the topmost layer is always the youngest and the bottommost layer is always the oldest.






14. A commonly used scale of earthquake intensity.






15. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.






16. A narrow strip of land that has water on either side and connects two larger bodies of water.






17. 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.






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






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






20. The symbol used on a map to indicate directions & both cardinal and ordinal.






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






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






23. 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.






24. A thick layer of soil.






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






26. Turbulent stream water flow down a steep gradient & but not as steep as in a waterfall.






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






28. A molecule composed of three atoms of oxygen and mostly found in the stratosphere. Though beneficial in the upper atmosphere & at ground level & ozone is called photochemical smog & and is a respiratory irritant and considered a pollutant.






29. The Sun with all the celestial bodies that revolve around it.






30. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






31. An ingredient in a food or other substance that nourishes or promotes growth.






32. A sedimentary rock composed primarily of biogenic sediments.






33. A guide to reading a map that typically contains distance scales & arrows indicating direction & and/or explanations of symbols used.






34. An instrument that merely indicates the occurrence of an earthquake.






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






36. 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.






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






38. 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.






39. The area bordering a stream over which water spreads when the stream tops its channel banks.






40. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.






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






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






43. A cyclical pattern of movement in a fluid body such as the ocean & the atmosphere & or the Earth's mantle & driven by density variations which in turn are the result of differences in temperature from one part of the fluid to another.






44. The two days of the year on which the noon sun is directly overhead at either 23.5






45. Water beneath the Earth's surface.






46. A coral reef attached directly to the mainland.






47. The precipitation that runs directly off the surface to stream or body of standing water.






48. Any accumulation of material & by settling from water or air & chemical precipitation & evaporation from solution & etc.






49. An atmospheric shield providing the Earth with protection from ultra-violet rays which can cause sun burn & skin cancer and the destruction of the delicate plant life which supports the planet's food chain.






50. 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.