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 two days of the year on which the noon sun is directly overhead at either 23.5






2. A river that is able to maintain its flow through a desert because of water received from outside the desert.






3. The transformation of a soil from a solid to a liquid state as the result of increased pore pressure.






4. A waterway from open ocean into a lagoon.






5. The peak flow of water that tops the banks of a stream channel.






6. An era of time during the Phanerozoic eon lasting from 245 million years ago to 66.4 million ago.






7. Geologic time expressed in years before the present.






8. The first scientist to make systematic use of the telescope in looking at the heavens.






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






10. Woodland that usually gets at least 100 inches of rain each year.






11. A coral reef separated from the mainland by a lagoon.






12. A fracture or zone of fractures along the boundaries of tectonic plates where movement has taken place.






13. A commonly used measure of earthquake magnitude & based on a logarithmic scale. Each integral step on the scale represents a tenfold increase in the extent of ground shaking & as recorded on a seismograph.






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






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






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






17. A volcano in the shape of a flattened cone & broad and low & built by very fluid flows of basaltic lava.






18. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.






19. Lava extruded beneath water characterized by pillow shapes.






20. 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 .






21. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.






22. Woodland that usually gets at least 100 inches of rain each year.






23. Bent rock strata.






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






25. Distance over which wave-forming winds blow.






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






27. 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.






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






29. Occurs at the intersection of the water table with the ground surface.






30. Shapes & like mountains or hills that make up the Earth's surface.






31. A lake in an abandoned meander.






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






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






34. The precipitation that runs directly off the surface to stream or body of standing water.






35. The effect of water and carbon dioxide absorbing outgoing infrared radiation & raising a system's temperature. The term is generally used with reference to the Earth's temperature & although it can also be applied to other systems & such as greenhous






36. 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.






37. The amount of dissolved salt in water.






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






39. The low spot between two successive waves.






40. Where two plates collide to form mountains.






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






42. A glaciated valley now flooded by the sea.






43. An area subject to dust storms & especially south central United States .






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






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






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






47. The surface between the zone of saturation and the zone of aeration.






48. The partial or complete blocking from view of one object by another.






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






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