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. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






2. Any place where bedrock is visible on the surface of the Earth.






3. A general term for a relatively hard layer of soil at or just below the ground surface & cemented by silica & iron oxide & calcium carbonate & or organic matter.






4. The very slow & generally continuous downslope movement of soil and debris under the influence of gravity.






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






6. A sedimentary rock composed primarily of biogenic sediments.






7. A post of dripstone growing up from a cave floor.






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






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






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






11. Lacking in rainfall & very dry.






12. One of several rock-forming minerals that contain at least 95% silica (quartz). and usually one or more other common elements.






13. Heat transport by moving particles & and the thermal energy that they carry & to a new location.






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






15. An earthquake that follows and has its epicenter near a larger earthquake.






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






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






18. One of several rock-forming minerals that contain at least 95% silica (quartz). and usually one or more other common elements.






19. A large amount of gas and dust in space & spread out in an immense volume.






20. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.






21. The closest galaxy to the Milky way. It is approximately 2 million light-years away.






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






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






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






25. Lacking in rainfall & very dry.






26. Lava extruded beneath water characterized by pillow shapes.






27. The point on the Earth's surface that is directly above the focus of an earthquake.






28. The distance between two successive wave crests or troughs.






29. The remains of an extremely massive star pulled into a small volume by the force of gravity.






30. To change back and forth uncertainly.






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






32. The accumulation of material in layers or beds.






33. A molecule composed of three atoms of oxygen and mostly found in the stratosphere. Though beneficial in the upper atmosphere & at ground level & ozone is called photochemical smog & and is a respiratory irritant and considered a pollutant.






34. A lake in an abandoned meander.






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






36. Living on land.






37. The current geologic era & which began 66.4 million years ago and continues to the present.






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






39. The level of light that penetrates through water.






40. The production of living matter by organisms that make food using sunlight or chemicals. Usually expressed as grams of carbon per square meter per year.






41. The height of a place above sea level.






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






43. The chronological sequence of units of Earth time.






44. A planetary satellite.






45. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






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






47. An abandoned meander .






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






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






50. A large volume of dust-sized particles lifted high into the atmosphere.