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. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.






2. The primary division of geologic time which are & from oldest to youngest & the Hadean & Archean & Proterozoic & and Phanerozoic eons.






3. A ridge of high water associated with a hurricane and which floods over the shore .






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






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






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






7. The straightening and/or deepening of a river channel.






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






9. A volcano that is composed of alternating layers of lava and pyroclastic material & along with abundant dikes and sills. Viscous & intermediate lava may flow from a central vent. Example: Mt. Fuji in Japan.






10. Living on land.






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






12. The symbol used on a map to indicate directions & both cardinal and ordinal.






13. An abandoned meander .






14. 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






15. A vent in the surface of the Earth & from which lava & ash & and gases erupt.






16. A rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.






17. Containing moisture.






18. 1. A mass of sand & gravel & or alluvium deposited on the bed of a stream & sea & or lake & or at the mouth of a stream 2. A unit of pressure & approximately equal to atmospheric pressure at sea level.






19. Elongated rises on the ocean floor where basalt periodically erupts & forming new oceanic crust.






20. An eruption of lava that takes place from a fracture & usually without producing a cone.






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






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






23. The process by which ocean floors spread laterally from crests of main ocean ridges. As material moves laterally from the ridge & new material replaces it along the ridge crest by welling upward from the mantle.






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






25. 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.






26. All of space and everything in it.






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






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






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






30. An informal term to include all geologic time from the beginning of the Earth to the beginning of the Cambrian period 570 million years ago.






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






32. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.






33. Weathering processes that are the result of chemical reactions. Example: the transformation of orthoclase to kaolinite.






34. Mercury is named after the Roman messenger of the gods. It is the closest to the Sun.






35. A chuck of rock or dust in space.






36. The innermost zone of Earth. It consists of two parts & an outer liquid section and an inner solid section & both chiefly of iron and nickel with about 10 percent lighter elements. It is surrounded by the mantle.






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






38. (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.






39. The study of earthquakes & and of the structure of the Earth by both natural and artificially generated seismic waves.






40. A segment of an active fault zone that has not experienced a major earthquake during a time period when most other segments of the zone have. They are generally regarded as having a higher potential for future earthquakes.






41. 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






42. A substance that produces positively charged hydrogen ions (H+) when dissolved in water.






43. The galaxy where Earth is located.






44. A lake of lava & usually basaltic & in a volcanic caldera.






45. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.






46. Water beneath the Earth's surface.






47. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.






48. A rock changed from its original form and/or composition by heat & pressure &shearing stress & or chemically active fluids & or some combination of them.






49. A downward distortion or dimple in the water table that forms as a well pumps water faster than it can flow through the aquifer.






50. An instrument used to measure the speed of wind.