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. 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.






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






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






4. A substance that produces negatively charged hydroxide ions ( OH- ) in water and reacts with acids to form salts.






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






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






7. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






8. An accumulation of wind driven sand into a distinctive shape.






9. The pattern of water circulation from the ocean to the atmosphere to the land and back to the ocean.






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






11. 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.






12. The elevation at which snow persists throughout the year.






13. Lacking in rainfall & very dry.






14. Gases that can be dissociated by solar radiation & which releases chlorine & which in turn destroys ozone.

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15. Soil conditions prevailing in area whose mean annual temperature is 0o C.






16. Any natural concentration of a valuable material in the Earth's crust & whether that material can be extracted profitably or not.






17. A sedimentary rock made up of chemical sediments. Example: rock salt.






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






19. The low spot between two successive waves.






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






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






22. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.






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






24. A Hawaiian term for a lava flow that has a rough & jagged surface.






25. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






26. A reverse fault on which the dip angle of the fault plane is 15 degrees or less.






27. A process by which salts accumulate in soil.






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






29. Long narrow beaches separated in many places from the mainland by lagoons.






30. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






31. No identifiable layers of minerals in a rock sample






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






33. A rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.






34. Containing moisture.






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






36. A time of unusual winds and currents in the Pacific Ocean . El Nino generally causes warmer-than-normal sea surface temperatures and increased rainfall and storm activity.






37. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






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






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






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






41. The oldest eon in Earth history & extending from the origin of the Earth to about 3.9 billion years ago.






42. 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.






43. A process of land degradation initiated by human activity & particularly in the zones along the margins of deserts.






44. A measure of acidity.






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






46. Any seismic wave that travels through the body of Earth & rather than along its surface.






47. A Hawaiian term for a lava flow that has a rough & jagged surface.






48. The distance light travels through a vacuum in one year.






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






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