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






2. A large area with common features that set it apart from other areas.






3. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






4. The zones of seismic activity long which plates are in contact.






5. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






6. A narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






7. 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.






8. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






9. The naturally occurring material from which a mineral or minerals of economic value can be extracted at a profit.






10. Lava extruded beneath water characterized by pillow shapes.






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






12. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori






13. The region of a shore that is covered at high tide and exposed at low tide.






14. 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






15. A Hawaiian term for a basaltic lava flow with a smooth & or ropy surface.






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. Containing moisture.






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






19. Named after the Roman god of the sea. It is the eighth planet from the Sun.






20. 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.






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






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






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






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






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






26. Molten rock & containing dissolved gases and suspended solid particles. At the Earth's surface & magma is known as lava.






27. 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.






28. A division of geologic time next smaller than the eon and larger than a period. Example: The Paleozoic era is in the Phanerozoic eon and includes & among others & the Devonian period.






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






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






31. No identifiable layers of minerals in a rock sample






32. A deposit of partly decayed plant remains in a very wet environment; marsh or swamp deposit of plant remains containing more than 50 percent carbon.






33. The seaward edge of coast between low tide and effective wave action.






34. A study designed to collect critical data to be used for comparison or as a control in a later study.






35. The elevation at which snow persists throughout the year.






36. The process of removing metal from ore.






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






38. Any seismic wave that travels through the body of Earth & rather than along its surface.






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






40. An area of land that delivers runoff water & sediment & and dissolved substances to surface water bodies & such as rivers or lakes. All watersheds consist of boundaries & a basin and collection areas.






41. A general term including both oil and natural gas.






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






43. A system that uses a constellation of 24 satellites & their ground stations & and individual GPS receivers to accurately locate points on Earth.






44. A measure of the size of an earthquake in terms of the damage it causes.






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






46. The zone below the zone of aeration in which all pore spaces are filled with water.






47. 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.






48. A narrow & elongate region in which one lithospheric plate descends relative to another.






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






50. Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.