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. Enormous & thick sheets of rock that are part of the Earth's upper mantle that move and adjoin each other along zones of seismic activity. Many tectonic plates extend underneath both continents and sea floor.






2. Living in water.






3. (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.






4. Verifying assessments made from satellite data by doing direct & 'on-the ground' measurements.






5. A device built to study distant objects by making them appear closer.






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






7. Deposition of fine mineral particles (silt) on the beds of streams or lakes.






8. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.






9. A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned & the topmost layer is always the youngest and the bottommost layer is always the oldest.






10. The height of a place above sea level.






11. A valley caused by extension of the Earth's crust. Its floor forms as a portion of the crust moves downward along normal faults.






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






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






14. Distance over which wave-forming winds blow.






15. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






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






17. The uprush of a wave onto the beach followed by the return flow of the water down the beach slope in the intervals between waves.






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






19. A delta formed at both sides of a tidal inlet.






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






21. Iron & aluminum & magnesium & manganese & and titanium. Ores of the abundant metals only need to be 3 - 5 times as metal-rich as average rock.






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






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






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






25. The Earth's crust underlying the ocean basins which is formed at mid-oceanic ridges. It is typically 5 to 10 kilometers thick composed of basalt.






26. The principle that states the processes operating to change the Earth in the present also operated in the past.






27. Igneous. Antonym of intrusive. Synonym of volcanic. Pertaining to igneous rocks or features formed from lava released on the Earth's surface.






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






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






30. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.






31. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.






32. 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.






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






34. To preserve & or to avoid wasteful use.






35. An earthquake that follows and has its epicenter near a larger earthquake.






36. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.






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






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






39. A cavity in a lava & formed by the entrapment of a gas bubble during solidification of the lava.






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






41. A delta formed at both sides of a tidal inlet.






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






43. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.






44. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






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






46. An area in which a large number of windmills have been erected to generate electrical power.






47. A glaciated valley now flooded by the sea.






48. 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 &






49. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






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