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. To preserve & or to avoid wasteful use.






2. A ridge of high water associated with a hurricane and which floods over the shore .






3. 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.






4. 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.






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






6. The precipitation that runs directly off the surface to stream or body of standing water.






7. An imaginary circle around the earth that represents the halfway mark between the North and South Poles and establishes the boundary between the Northern and Southern Hemispheres.






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






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






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






11. The principle that states the processes operating to change the Earth in the present also operated in the past.






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






13. All of space and everything in it.






14. Living on land.






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






16. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






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






18. The height of a place above sea level.






19. The straightening and/or deepening of a river channel.






20. Deep steep-sided depression in the ocean floor caused by the subduction of oceanic crust beneath either other oceanic crust or continental crust.






21. The chronological sequence of units of Earth time.






22. A glaciated valley now flooded by the sea.






23. The elevation at which snow persists throughout the year.






24. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






25. Where two plates collide to form mountains.






26. The pattern of water circulation from the ocean to the atmosphere to the land and back to the ocean.






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






28. A group of islands; an expanse of water with scattered islands.






29. 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.






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






31. The way in which a rock or mineral breaks in random patterns rather than cleaving






32. The internal resistance to flow in a liquid.






33. The vertical distance between the crest and adjacent trough of a wave.






34. The rock beneath the soil.






35. An astronomical instrument for measuring angles & primarily altitude of celestial bodies to determine latitude.






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






37. A commonly used measure of earthquake magnitude & based on a logarithmic scale. Each integral step on the scale represents a tenfold increase in the extent of ground shaking & as recorded on a seismograph.






38. The galaxy where Earth is located.






39. A waste material that contaminates air & water & or soil.






40. That portion of the resources for a valuable mineral commodity that can be extracted from the Earth at a profit today.






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






42. The straightening and/or deepening of a river channel.






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






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






45. The speed at which water flows.






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






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






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






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






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