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 method of locating an epicenter by determining how far it lies from three widely separated seismographs.






2. The rigid outer shell of the Earth. It includes the crust and uppermost mantle and is on the order of 100 km in thickness.






3. Deserts formed by blocking moisture-bearing winds with mountain barriers.






4. The reflection of light on a given mineral's surface & classified by intensity and quality.






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






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






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






8. 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.






9. 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.






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






11. 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.






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






13. The areas of & in & or constituting a city.






14. The very small particles of dirt & soot & and other pollutants that are present in the air.






15. 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.






16. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






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






18. The presence of layers in some rocks caused by parallel alignment of minerals.






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






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






22. An astronomical instrument for measuring angles & primarily altitude of celestial bodies to determine latitude.






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






24. The very slow & generally continuous downslope movement of soil and debris under the influence of gravity.






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






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






27. A hot & gaseous & self-luminous celestial body & as the Sun.






28. A worldwide change in sea level & such as caused by melting glaciers.






29. Plutonic. Antonym of extrusive. Pertaining to igneous rocks or features formed by the emplacement of magma in pre-existing rocks.






30. Living on land.






31. Deposits of wind-borne dust.






32. 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.






33. 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.






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






35. Refers to rock or sediments made up primarily of broken fragments of pre-existing rocks or minerals.






36. Extending across a continent.






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






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






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






40. The level of light that penetrates through water.






41. A large amount of gas and dust in space & spread out in an immense volume.






42. The environment where a particular plant or animal is normally found.






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






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






45. The way in which a rock or mineral breaks in random patterns rather than cleaving






46. 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.






47. Temporary accumulations of sediments that collect between low and high water marks.






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






49. Deserts formed by blocking moisture-bearing winds with mountain barriers.






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