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






2. A chuck of rock or dust in space.






3. The amount of material a stream carries in suspension.






4. The top of a wave.






5. The arrangement of rock units in the proper chronological order from youngest to oldest.






6. 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.






7. Where one plate slides beneath another plate as the two are pushed together & a subduction zone.






8. Bent rock strata.






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






10. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.






11. 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.






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






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






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






15. The low spot between two successive waves.






16. The area bordering a stream over which water spreads when the stream tops its channel banks.






17. Where two plates are moving in opposite directions as in a mid-ocean ridge.






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






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






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






21. The science that deals with the study of the planet Earth--the materials of which it is made & the processes that act to change these materials from one form to another & and the history recorded by these materials; the forces acting to deform the ou






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






23. A mudflow composed chiefly of pyroclastic material on the flanks of a volcano.






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






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






26. Materials that are found in nature that are useful or necessary for people to live.






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






28. Where two plates are moving in opposite directions as in a mid-ocean ridge.






29. A glaciated valley now flooded by the sea.






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






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






32. The process by which building stone & usually in blocks or sheets & is extracted from the Earth. radiation -- (Electromagnetic radiation) -- energy that travels through space in the form of waves without the intervention of matter & as in the transp






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






34. A protective wall built offshore and usually parallel to the shore.






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






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






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






38. (Latin- Sol & Greek- Helios)the closest star to Earth. It is a giant ball of gas without any solid surface.






39. A coral reef attached directly to the mainland.






40. A person who makes maps.






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






42. Sediment formed by chemical precipitation from water. Example: halite precipitated as the result of the evaporation of sea water.






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






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






45. Any natural concentration of a valuable material in the Earth's crust & whether that material can be extracted profitably or not.






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






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






48. A lake in an abandoned meander.






49. The perpendicular or very steep descent of a stream.






50. The persistence of wind-formed waves after wind ceases.