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 conical volcano formed by the accumulation of pyroclastic debris around a vent.






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






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






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






5. The galaxy where Earth is located.






6. A small & dust-bearing whirlwind.






7. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.






8. A collection of maps.






9. Any solid material that has settled out of a state of suspension in liquid.






10. An atmospheric shield providing the Earth with protection from ultra-violet rays which can cause sun burn & skin cancer and the destruction of the delicate plant life which supports the planet's food chain.






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






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






13. The resistance of a mineral to scratching & as measured by the Mohs scale.






14. The region of a shore that is covered at high tide and exposed at low tide.






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






16. Any place where bedrock is visible on the surface of the Earth.






17. The accumulation of material in layers or beds.






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






19. 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.






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






21. The portion of the continental margin that extends as a gently sloping surface from the shoreline seaward to a marked change in slope at the top of the continental slope . Seaward depth averages about 130 m.






22. A collection of maps.






23. The line separating land and water.






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






25. The line that separates one drainage basin from another.






26. A downward distortion or dimple in the water table that forms as a well pumps water faster than it can flow through the aquifer.






27. Swamp that forms in the low lying flood plain behind a levee.






28. The green pigment in the cells of many plants that enables them to use sunlight to convert carbon dioxide and water into carbohydrates in the process called photosynthesis.






29. The Earth's crust underlying the ocean basins which is formed at mid-oceanic ridges. It is typically 5 to 10 kilometers thick composed of basalt.






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






31. Flat land covered with tall grass and wildflowers.






32. The process of removing metal from ore.






33. Living in water.






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






35. A disease-causing organism or entity & such as a bacterium or virus.






36. Lacking in rainfall & very dry.






37. A major drainage divide separating the drainage to one ocean from another.






38. A type of disintegration in which jointed rock is forced apart by the expansion of water as it freezes in fractures.






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






40. A steep or vertical cliff & either above or below sea level.






41. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






42. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.






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






44. Living in water.






45. Similar to a groin but built to keep sand out of a harbor entrance.






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






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






48. The process of mountain building.






49. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






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