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






2. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.






3. A vertical conduit through the Earth's crust below a volcano & through Which magma has passed.






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






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






6. The amount of dissolved salt in water.






7. All of space and everything in it.






8. 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.






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






10. Lies half way between the north and south magnetic poles.






11. Flat land covered with tall grass and wildflowers.






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






13. Occurs at the intersection of the water table with the ground surface.






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






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






16. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.






17. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.






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






19. The upper horizons in a soil & through which gravitational moisture travels & removing soluble decomposition products.






20. A lake of lava & usually basaltic & in a volcanic caldera.






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






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






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






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






25. 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.






26. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






27. A permeable region of rock or soil through which ground water can move.






28. The sum of the processes that result in the wearing away or the progressive lowering of the Earth's surface by weathering & erosion & mass wasting & and transportation.






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






30. The areas of & in & or constituting a city.






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






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






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






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






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






36. A valley caused by extension of the Earth's crust. Its floor forms as a portion of the crust moves downward along normal faults.






37. 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.






38. Flat land covered with tall grass and wildflowers.






39. Highly mafic igneous volcanic rock & typically fine-grained and dark in color; rough volcanic equivalent of gabbro. Basalt is the most abundant volcanic rock in the Earth's crust.






40. 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.






41. The galaxy where Earth is located.






42. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






43. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.






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






45. A depression in the ground formed by the melting of a block of glacier ice buried or partially buried by drift.






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






47. The sum of the processes that result in the wearing away or the progressive lowering of the Earth's surface by weathering & erosion & mass wasting & and transportation.






48. The two days of the year on which neither hemisphere is tilted toward or away from the sun.






49. The zone below the zone of aeration in which all pore spaces are filled with water.






50. A waterway from open ocean into a lagoon.