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






2. To preserve & or to avoid wasteful use.






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






4. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.






5. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.






6. A narrow & steep-walled depression in the ocean floor & much deeper than the adjacent ocean and associated with a subduction zone.






7. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.






8. 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






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






10. One of several rock-forming minerals that contain at least 95% silica (quartz). and usually one or more other common elements.






11. The region of a shore that is covered at high tide and exposed at low tide.






12. The galaxy where Earth is located.






13. A ridge of high water associated with a hurricane and which floods over the shore .






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






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






16. A lake of lava & usually basaltic & in a volcanic caldera.






17. A mound or ridge of sediment deposited by a glacier.






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






19. 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.






20. Lacking in rainfall & very dry.






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






22. 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.






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






24. The study of earthquakes & and of the structure of the Earth by both natural and artificially generated seismic waves.






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






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






27. A lake of lava & usually basaltic & in a volcanic caldera.






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






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






30. Bent rock strata.






31. An artificial hill formed by the debris of successive human settlements.






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






33. The green pigment in the cells of many plants that enables them to use sunlight to convert carbon dioxide and water into carbohydrates in the process called photosynthesis.






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






35. Named after the Roman god of the sea. It is the eighth planet from the Sun.






36. 1. A low & bowl-shaped area of land surrounded by higher lands. 2. any large depression in which sediments are deposited.






37. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






38. The outermost layer of the Earth & varying in thickness from about 10 kilometers (6 miles) below the oceans & to 65 kilometers (about 40 miles) below the continents; represents less than 1 percent of the Earth's volume.






39. No identifiable layers of minerals in a rock sample






40. A vent on the seafloor from which hydrothermal fluids are emitted. Upon mixing with seawater and cooling & the fluids precipitate a cloud of fine-grained sulfide minerals that resembles a cloud of black smoke.






41. A small & dust-bearing whirlwind.






42. A small ice sheet.






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






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






45. The zones of seismic activity long which plates are in contact.






46. The amount of material a stream carries in suspension.






47. A system that uses a constellation of 24 satellites & their ground stations & and individual GPS receivers to accurately locate points on Earth.






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






49. To preserve & or to avoid wasteful use.






50. The processes (mechanical and chemical) responsible for the wearing away & loosening & and dissolving of materials of the Earth's crust.