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






2. An abandoned meander .






3. Scratches & or small channels & gouged by glacier action. Occur on boulders & pebbles & and bedrock. Striations along bedrock indicate direction of ice movement.






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






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. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.






7. The process by which a binding & or cementing & agent is precipitated in spaces among individual particles of a deposit. Common cementing agents are calcite & quartz & and dolomite.






8. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.






9. (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.






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






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






12. The solid innermost part of the core with a diameter of a little over 1 &200 km.






13. The point on the Earth's surface directly above the focus of an earthquake.






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






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






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






17. The process of mountain building.






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






19. The process by which an unconsolidated deposit of sediments is converted in to solid rock.






20. Enormous & thick sheets of rock that are part of the Earth's upper mantle that move and adjoin each other along zones of seismic activity. Many tectonic plates extend underneath both continents and sea floor.






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






22. Heat transport by direct transfer of energy from one particle to another & without moving the particle to a new location.






23. A large area of flat or nearly flat land.






24. Gases that can be dissociated by solar radiation & which releases chlorine & which in turn destroys ozone.

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






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






27. 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






28. Formed when an organism is flattened (compressed) and a thin film of organic material from its body is left in the rock.






29. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






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






31. Scratches & or small channels & gouged by glacier action. Occur on boulders & pebbles & and bedrock. Striations along bedrock indicate direction of ice movement.






32. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.






33. The two days of the year on which the noon sun is directly overhead at either 23.5






34. Synonym of intrusive. Antonym of volcanic. Applies to igneous rocks formed beneath the surface of the Earth; typically with large crystals due to the slowness of cooling.






35. The weak or 'soft' zone in the upper mantle just below the lithosphere & involved in plate movement and isostatic adjustments. It lies 70 to 100 km below the surface and may extend to a depth of 400 km.






36. The theory of Plate Tectonics states that the Earth's crust is fragmented into a dozen or more large and small pieces floating on a semi-molten mantle.






37. 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






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






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






40. A small ice sheet.






41. The process by which a binding & or cementing & agent is precipitated in spaces among individual particles of a deposit. Common cementing agents are calcite & quartz & and dolomite.






42. A curved belt of volcanic islands lying above a subduction zone.






43. A period of dryness & that when prolonged & causes damage to crops; a shortage of water.






44. The Sun with all the celestial bodies that revolve around it.






45. He area from which a stream and its tributaries receives its water.






46. A cyclical pattern of movement in a fluid body such as the ocean & the atmosphere & or the Earth's mantle & driven by density variations which in turn are the result of differences in temperature from one part of the fluid to another.






47. Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. Longitude lines extend vertically & from pole to pole on a globe.






48. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






49. Pertaining to clastic material formed by volcanic explosion or aerial expulsion from a volcanic vent.






50. The level of light that penetrates through water.







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