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. A steep or vertical cliff & either above or below sea level.






2. The rock beneath the soil.






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






4. A steep or vertical cliff & either above or below sea level.






5. A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned & the topmost layer is always the youngest and the bottommost layer is always the oldest.






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






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






8. Forms along a coast as wave erosion cuts through a headland.






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






10. 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.






11. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






12. A minor tremor that precedes an earthquake. An increase in seismicity may signal that a major release of strain energy is about to occur.






13. Living on land.






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






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






16. Deserts formed by blocking moisture-bearing winds with mountain barriers.






17. The average weather conditions of an area over many years & as measured by temperature & wind speed & and precipitation.






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






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






20. To preserve & or to avoid wasteful use.






21. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






22. The line separating land and water.






23. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






24. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.






25. A building that contains one or more telescopes.






26. The galaxy where Earth is located.






27. The processes (mechanical and chemical) responsible for the wearing away & loosening & and dissolving of materials of the Earth's crust.






28. The environment where a particular plant or animal is normally found.






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






30. The most recent eon of geologic time beginning 570 million years ago and continuing to the present.






31. A person who makes maps.






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






33. To change back and forth uncertainly.






34. A hydrocarbon (coal or petroleum) that can be extracted from the Earth for use as a fuel. Fossil fuels are non-renewable energy sources.






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






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






37. Of or relating to or containing basalt & a dark & dense & extrusive rock that has a silica content of 40% to 50% and makes up most of the ocean floor.






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






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






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






41. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.






42. Gases (primarily water and carbon dioxide & but also a variety of sulfur and nitrogen compounds and gaseous hydrocarbons) that trap the Sun's heat in the atmosphere.






43. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.






44. The internal resistance to flow in a liquid.






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






46. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.






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






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






49. 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.






50. An aggregate of one or more minerals in varying proportions.