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 ball of ice and dust & whose orbit is a long & narrow ellipse.






2. The two days of the year on which neither hemisphere is tilted toward or away from the sun.






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






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






5. Elongated rises on the ocean floor where basalt periodically erupts & forming new oceanic crust.






6. A river that is able to maintain its flow through a desert because of water received from outside the desert.






7. 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.






8. Flat land covered with tall grass and wildflowers.






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






10. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






11. An area subject to dust storms & especially south central United States .






12. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.






13. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.






14. 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.






15. The process of one plate descending beneath another.






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






17. Living in water.






18. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.






19. A waste material that contaminates air & water & or soil.






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






21. A large area of flat or nearly flat land.






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






23. A layer of sedimentary rock; plural is strata.






24. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






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






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






27. 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.






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






29. Jupiter is named after the Roman king of the gods. It is the fifth planet from the Sun.






30. To change back and forth uncertainly.






31. The top of a wave.






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






33. A floating ice sheet extending across water from a land-based glacier.






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






35. (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.






36. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






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






38. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.






39. Shapes & like mountains or hills that make up the Earth's surface.






40. 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 .






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






42. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.






43. 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.






44. A chuck of rock or dust in space.






45. 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.






46. A ball of ice and dust & whose orbit is a long & narrow ellipse.






47. Where one plate slides beneath another plate as the two are pushed together & a subduction zone.






48. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






49. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






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