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. Woodland that usually gets at least 100 inches of rain each year.






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






3. The amount of dissolved salt in water.






4. 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.






5. The process of one plate descending beneath another.






6. A mound or ridge of sediment deposited by a glacier.






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






8. A narrow & steep-walled depression in the ocean floor & much deeper than the adjacent ocean and associated with a subduction zone.






9. An era of geologic time lasting from 570 to 245 million years ago.






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






11. An instrument that detects & magnifies & and records vibrations of the Earth & especially earthquakes.






12. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






13. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.






14. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






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






16. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






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






18. A coral reef separated from the mainland by a lagoon.






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






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






21. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






22. A collection of maps.






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






24. 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.






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






26. The formation & advance and retreat of glaciers and the results of these activities.






27. A Hawaiian term for a lava flow that has a rough & jagged surface.






28. The process of removing metal from ore.






29. To wash or scrub away.






30. Any object that revolves around another object in space.






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






32. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.






33. The galaxy where Earth is located.






34. A unit of length used in sea navigation based on the length of 1 minute of arc on a great circle. On Earth & 1 minute of latitude.






35. The distance light travels through a vacuum in one year.






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






37. Bent rock strata.






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






39. A natural depression in the surface of the land caused by the collapse of the roof of a cavern or subterranean passage & generally occurring in limestone regions.






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






41. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.






42. Where two plates collide to form mountains.






43. In a stream & the volume of water passing through a channel in a given time.






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






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






46. A ball of ice and dust & whose orbit is a long & narrow ellipse.






47. Mountains & characterized by extensive folding and thrust faulting & that form at convergent plate boundaries on continents.






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






49. An informal term to include all geologic time from the beginning of the Earth to the beginning of the Cambrian period 570 million years ago.






50. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.