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 small ice sheet.






2. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.






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






4. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






5. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






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






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






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






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






10. The process of removing metal from ore.






11. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.






12. Containing moisture.






13. 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.






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






15. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






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






17. 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.






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






19. The very small particles of dirt & soot & and other pollutants that are present in the air.






20. Evidence in rock of the presence of past life & such as a dinosaur bone & an ancient clam shell & or the footprint of a long-extinct animal as well as life history artifacts.






21. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






22. A hole or basin cut into bedrock of a stream by the abrasive action of pebbles and sand swirled by turbulent stream flow.






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






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






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






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






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






28. The relationship between distances in the area being mapped and distances in the map itself.






29. Pluto is named after the Roman god of the Underworld. No longer considered a planet.






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






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






32. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.






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






34. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






35. A coral reef attached directly to the mainland.






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






37. A process of land degradation initiated by human activity & particularly in the zones along the margins of deserts.






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






39. A lake in an abandoned meander.






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






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






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






43. An accumulation of wind driven sand into a distinctive shape.






44. The point on the Earth's surface where a magnetic needle points vertically downward (north magnetic pole) or vertically upward (south magnetic pole).






45. The process by which ocean floors spread laterally from crests of main ocean ridges. As material moves laterally from the ridge & new material replaces it along the ridge crest by welling upward from the mantle.






46. Objects revolving around the sun that are too small and too numerous to be considered planets.






47. 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






48. Long narrow beaches separated in many places from the mainland by lagoons.






49. A measure of acidity.






50. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.