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. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.






2. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.






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






4. Any place where bedrock is visible on the surface of the Earth.






5. A delta formed at both sides of a tidal inlet.






6. 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.






7. Any solid material that has settled out of a state of suspension in liquid.






8. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.






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






10. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.






11. 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.






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






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






14. Where two plates collide to form mountains.






15. (Latin- Sol & Greek- Helios)the closest star to Earth. It is a giant ball of gas without any solid surface.






16. A commonly used scale of earthquake intensity.






17. Any form of water & such as rain & sleet & or snow & that falls to Earth's surface.






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






19. Deep steep-sided depression in the ocean floor caused by the subduction of oceanic crust beneath either other oceanic crust or continental crust.






20. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






21. A coral reef attached directly to the mainland.






22. Molten rock & containing dissolved gases and suspended solid particles. At the Earth's surface & magma is known as lava.






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






24. Extending across a continent.






25. A geometrical form taken by a mineral & giving external expression to orderly internal atomic arrangement.






26. A large area with common features that set it apart from other areas.






27. A chuck of rock or dust in space.






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






29. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






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






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






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






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






34. Any object that revolves around another object in space.






35. To change back and forth uncertainly.






36. 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.






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






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






39. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.






40. 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.






41. A delta formed at both sides of a tidal inlet.






42. Pertaining to clastic material formed by volcanic explosion or aerial expulsion from a volcanic vent.






43. The condition of equilibrium & comparable to floating & of units of the lithosphere above the asthenosphere.






44. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori






45. Objects revolving around the sun that are too small and too numerous to be considered planets.






46. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






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






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






49. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






50. 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.