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. The presence of layers in some rocks caused by parallel alignment of minerals.






2. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.






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. 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.






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






6. The galaxy where Earth is located.






7. One of several rock-forming minerals that contain at least 95% silica (quartz). and usually one or more other common elements.






8. 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.






9. 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.






10. 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






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






12. A seismic body wave that involves particle motion from side to side & perpendicular to the direction of wave propagation. S-waves are slower than P-waves and cannot travel through a liquid.






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






14. Heat extracted from the Earth for use as an power source.






15. The dust-sized & sharp-edged & glassy particles resulting from an explosive volcanic eruption.






16. A fracture or zone of fractures along the boundaries of tectonic plates where movement has taken place.






17. To preserve & or to avoid wasteful use.






18. A chuck of rock or dust in space.






19. 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.






20. A building that contains one or more telescopes.






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






22. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.






23. The partial or complete blocking from view of one object by another.






24. Iron & aluminum & magnesium & manganese & and titanium. Ores of the abundant metals only need to be 3 - 5 times as metal-rich as average rock.






25. A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions. The San Andreas fault of California is a good example.






26. The innermost zone of Earth. It consists of two parts & an outer liquid section and an inner solid section & both chiefly of iron and nickel with about 10 percent lighter elements. It is surrounded by the mantle.






27. A measure of acidity.






28. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.






29. A device built to study distant objects by making them appear closer.






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






31. 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.






32. An instrument used to measure the speed of wind.






33. A small ice sheet.






34. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.






35. A waterway from open ocean into a lagoon.






36. A segment of an active fault zone that has not experienced a major earthquake during a time period when most other segments of the zone have. They are generally regarded as having a higher potential for future earthquakes.






37. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita






38. The rise and fall of sea level caused by the gravitational pull of the Sun and Moon on the Earth.






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






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






41. The symbol used on a map to indicate directions & both cardinal and ordinal.






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






43. The closest star to Earth besides the sun. It is approximately 4 light years away.






44. Deserts formed by blocking moisture-bearing winds with mountain barriers.






45. An eruption of lava that takes place from a fracture & usually without producing a cone.






46. The mass of an object divided by its volume.






47. The process by which an unconsolidated deposit of sediments is converted in to solid rock.






48. The most recent eon of geologic time beginning 570 million years ago and continuing to the present.






49. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori






50. The physical & chemical & and biological processes by which rock at or near the Earth's surface is broken down into smaller pieces.