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. 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.






2. The portion of the continental margin that lies between the abyssal plain and the continental slope. The continental rise is underlain by crustal rocks of the ocean basin.






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






4. To wash or scrub away.






5. The speed at which water flows.






6. A group of islands; an expanse of water with scattered islands.






7. Sediments produced directly by the life processes of plants or animals.






8. A commonly used scale of earthquake intensity.






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






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






11. Any form of water & such as rain & sleet & or snow & that falls to Earth's surface.






12. The distance between two successive wave crests or troughs.






13. Lava extruded beneath water characterized by pillow shapes.






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






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






16. Sediments produced directly by the life processes of plants or animals.






17. A sedimentary rock composed primarily of biogenic sediments.






18. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.






19. A chuck of rock or dust in space.






20. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.






21. An instrument that merely indicates the occurrence of an earthquake.






22. A sedimentary rock composed primarily of biogenic sediments.






23. Forms along a coast as wave erosion cuts through a headland.






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






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






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






27. A measure of acidity.






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






29. A mudflow composed chiefly of pyroclastic material on the flanks of a volcano.






30. (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.






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






32. The persistence of wind-formed waves after wind ceases.






33. An aggregate of one or more minerals in varying proportions.






34. A slide involving a downward and usually sudden movement of newly detached segments of bedrock sliding or slipping over an inclined surface of weakness such as a bedding plane & fault plane & or joint surface.






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






36. The point on the Earth's surface that is directly above the focus of an earthquake.






37. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.






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






39. The remains of an extremely massive star pulled into a small volume by the force of gravity.






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






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






42. An aggregate of one or more minerals in varying proportions.






43. 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.






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






45. A conical volcano formed by the accumulation of pyroclastic debris around a vent.






46. A building that contains one or more telescopes.






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






48. Till deposited from main body of glacier during ablation.






49. A supercontinent that existed from the the end of the Permian to the Jurassic & 300 to 200 million years ago & assembled from large continents like Euramerica & Gondwana & and Siberia & as well as smaller landmasses like the Cathaysian and Cimmerian






50. 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.