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






2. Any object that revolves around another object in space.






3. A glaciated valley now flooded by the sea.






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






5. That portion of the Earth below the crust and reaching to about 2 &780 km & where a transition zone of about 100 km thickness separates it from the core.






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






7. The explosion of a dying giant or supergiant star.






8. The height of a place above sea level.






9. An ingredient in a food or other substance that nourishes or promotes growth.






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






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






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






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






14. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.






15. The areas of & in & or constituting a city.






16. A sea wave produced by any large-scale & short duration disturbance on the seafloor & commonly a shallow submarine earthquake but possibly also a submarine slide or volcanic eruption.






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






18. Refers to rock or sediments made up primarily of broken fragments of pre-existing rocks or minerals.






19. All unconsolidated materials above bedrock. Natural earthy materials on the Earth's surface & in places modified or even made by human activity & containing living matter & and supporting or capable of supporting plants out of doors.






20. A thick layer of soil.






21. A blanket of wind-driven sand with an upper surface about a meter above ground level.






22. Flat land covered with tall grass and wildflowers.






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






24. A division of geologic time next shorter than a period. Example: the Pleistocene epoch is in the Quaternary period.






25. A detailed mathematical description of the cause-and-effect relationships between events that can be used to predict or explain other such events.






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






27. 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






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






29. Surficial mining & in which the valuable rock is exposed by removal of overlying rock or soil.






30. A Hawaiian term for a lava flow that has a rough & jagged surface.






31. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita






32. Saturn is named after the Roman god of the harvest. It is the sixth planet from the Sun.






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






34. An accumulation of wind driven sand into a distinctive shape.






35. 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.






36. Ratio between weight of given volume of material and weight of equal volume of pure water.






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






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






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






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






41. The outermost part of the core. It is liquid & about 1 &700 km thick & and separated from the inner & solid core by a transition zone about 565 km thick.






42. The process of one plate descending beneath another.






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






44. Deposits of wind-borne dust.






45. A steep-sided rounded extrusion of highly viscous lava squeezed out from a volcano and forming a dome-shaped or bulbous mass above and around the volcanic vent. The structure generally develops inside a volcanic crater.






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






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






48. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






49. Produced as a wave steepens and falls forward as the wave nears the shore.






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