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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. The solid innermost part of the core with a diameter of a little over 1 &200 km.






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






3. 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.






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






5. A vertical conduit through the Earth's crust below a volcano & through Which magma has passed.






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






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






8. A general term including both oil and natural gas.






9. (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.






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






11. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






12. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.






13. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






14. Water beneath the Earth's surface.






15. The sum of the processes that result in the wearing away or the progressive lowering of the Earth's surface by weathering & erosion & mass wasting & and transportation.






16. Sediment formed by chemical precipitation from water. Example: halite precipitated as the result of the evaporation of sea water.






17. An area of land that delivers runoff water & sediment & and dissolved substances to surface water bodies & such as rivers or lakes. All watersheds consist of boundaries & a basin and collection areas.






18. A type of thermal spring which ejects water intermittently with considerable force.






19. The generally dark & more or less stable part of the organic matter in a soil & so well decomposed that the original sources cannot be identified.






20. The southern portion of the late Paleozoic supercontinent known as Pangea. It means & literally 'Land of the Gonds' (a people of the Indian subcontinent).The supercontinent existed from Cambrian to Jurassic time & mainly composed of South America &






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






22. Living parts of the environment that can renew or replace themselves.






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






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






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






26. A type of volcanic eruption characterized by nuees ardentes and the development of lava domes.






27. A sharp bend & loop or turn in a stream's course. When abandoned & it is called a meander scar or an oxbow.






28. 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.






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






30. The speed at which water flows.






31. Any porous and permeable rock that yields oil or natural gas.






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






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






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






35. 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.






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






37. A detailed mathematical description of the cause-and-effect relationships between events that can be used to predict or explain other such events.






38. A small ice sheet.






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






40. Swamp that forms in the low lying flood plain behind a levee.






41. To change back and forth uncertainly.






42. Heat transport by direct transfer of energy from one particle to another & without moving the particle to a new location.






43. The naturally occurring material from which a mineral or minerals of economic value can be extracted at a profit.






44. A glaciated valley now flooded by the sea.






45. 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.






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






47. A large ridge or mound-like structure within a body of water that is built by calcareous organisms such as corals & red algae & and bivalves.






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






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






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







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