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 height of a place above sea level.






2. Pertaining to or composed of granite & a coarse-grained igneous rock dominated by light-colored minerals & consisting of about 50 percent orthoclase & 25 percent quartz & and balance of feldspars and ferromagnesian silicates. Granite is commonly foun






3. Lacking in rainfall & very dry.






4. A zone in the Earth between 400 and 670 km below the surface separating the upper mantle from the lower mantle.






5. The internal resistance to flow in a liquid.






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






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






8. Shapes & like mountains or hills that make up the Earth's surface.






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






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






11. An ingredient in a food or other substance that nourishes or promotes growth.






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






13. The production of living matter by organisms that make food using sunlight or chemicals. Usually expressed as grams of carbon per square meter per year.






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






15. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






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. A pillar formed as a stalactite and stalagmite meet.






18. Lava extruded beneath water characterized by pillow shapes.






19. A river that is able to maintain its flow through a desert because of water received from outside the desert.






20. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






21. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.






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






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






24. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.






25. An area where fresh water comes into contact with seawater & usually in a partly enclosed coastal body of water; a mix of fresh and salt water where the current of a stream meets the tides.






26. The average weather conditions of an area over many years & as measured by temperature & wind speed & and precipitation.






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






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






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






30. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.






31. To change back and forth uncertainly.






32. The two days of the year on which the noon sun is directly overhead at either 23.5






33. All of space and everything in it.






34. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






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






36. The distance between two successive wave crests or troughs.






37. The process of mountain building.






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






39. The primary division of geologic time which are & from oldest to youngest & the Hadean & Archean & Proterozoic & and Phanerozoic eons.






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






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






42. An ingredient in a food or other substance that nourishes or promotes growth.






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






44. Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.






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






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






47. A coral reef attached directly to the mainland.






48. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






49. Where one plate slides beneath another plate as the two are pushed together & a subduction zone.






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