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






2. The line separating land and water.






3. A collection of maps.






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






5. An era of geologic time lasting from 570 to 245 million years ago.






6. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.






7. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






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






9. Living on land.






10. Living in water.






11. The processes of weathering by which physical actions such as frost wedging break down a rock into fragments & involving no chemical change.






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






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






14. The dust-sized & sharp-edged & glassy particles resulting from an explosive volcanic eruption.






15. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia & Baltica & Avalonia & (modern North America & Scandinavia & Greenland & Western and Central Europe); eventually fragmented into Eur






16. A building that contains one or more telescopes.






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






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






19. A waterway from open ocean into a lagoon.






20. A wall built out from the shore & usually at perpendicular to it to trap sand carried by longshore currents .






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






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






23. A small & dust-bearing whirlwind.






24. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.






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






26. Bent rock strata.






27. A sea level change due to change in load on Earth's crust.






28. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






29. A type of disintegration in which jointed rock is forced apart by the expansion of water as it freezes in fractures.






30. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






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






32. A process of erosion in which wind carries off particles of dust and sand.






33. The area bordering a stream over which water spreads when the stream tops its channel banks.






34. A natural depression in the surface of the land caused by the collapse of the roof of a cavern or subterranean passage & generally occurring in limestone regions.






35. A chuck of rock or dust in space.






36. The level of light that penetrates through water.






37. Pluto is named after the Roman god of the Underworld. No longer considered a planet.






38. Swamp that forms in the low lying flood plain behind a levee.






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






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






41. A broad & mound-like mass of glacier ice that usually spreads radially outward from a central zone.






42. Lava extruded beneath water characterized by pillow shapes.






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. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.






45. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






46. Living in water.






47. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






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






49. Jupiter is named after the Roman king of the gods. It is the fifth planet from the Sun.






50. (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.