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 science that deals with the study of the planet Earth--the materials of which it is made & the processes that act to change these materials from one form to another & and the history recorded by these materials; the forces acting to deform the ou






2. The process of removing metal from ore.






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






4. A supercontinent that existed from the the end of the Permian to the Jurassic & 300 to 200 million years ago & assembled from large continents like Euramerica & Gondwana & and Siberia & as well as smaller landmasses like the Cathaysian and Cimmerian






5. The very small particles of dirt & soot & and other pollutants that are present in the air.






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






7. A type of volcanic eruption characterized by nuees ardentes and the development of lava domes.






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






9. The uprush of a wave onto the beach followed by the return flow of the water down the beach slope in the intervals between waves.






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






11. Any form of water & such as rain & sleet & or snow & that falls to Earth's surface.






12. A system that uses a constellation of 24 satellites & their ground stations & and individual GPS receivers to accurately locate points on Earth.






13. 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.






14. Flat land covered with tall grass and wildflowers.






15. A substance that produces negatively charged hydroxide ions ( OH- ) in water and reacts with acids to form salts.






16. An area subject to dust storms & especially south central United States .






17. An artificial hill formed by the debris of successive human settlements.






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






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






20. The explosion of a dying giant or supergiant star.






21. Distance over which wave-forming winds blow.






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






23. A large & basin-shaped volcanic depression & more or less circular in form. Typically steep-sided & found at the summit of a shield volcano.






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






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






26. Deposition of fine mineral particles (silt) on the beds of streams or lakes.






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






28. The accumulation of material in layers or beds.






29. 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.






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






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






32. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia & Baltica & Avalonia & (modern North America & Scandinavia & Greenland & Western and Central Europe); eventually fragmented into Eur






33. A large ridge or mound-like structure within a body of water that is built by calcareous organisms such as corals & red algae & and bivalves.






34. The internal resistance to flow in a liquid.






35. To wash or scrub away.






36. A broad & mound-like mass of glacier ice that usually spreads radially outward from a central zone.






37. 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.






38. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






39. A tool for measuring the relative clarity of water.






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






41. A sedimentary rock made up of chemical sediments. Example: rock salt.






42. A substance that produces positively charged hydrogen ions (H+) when dissolved in water.






43. Surficial mining & in which the valuable rock is exposed by removal of overlying rock or soil.






44. A detailed mathematical description of the cause-and-effect relationships between events that can be used to predict or explain other such events.






45. A detailed mathematical description of the cause-and-effect relationships between events that can be used to predict or explain other such events.






46. The line separating land and water.






47. The process by which building stone & usually in blocks or sheets & is extracted from the Earth. radiation -- (Electromagnetic radiation) -- energy that travels through space in the form of waves without the intervention of matter & as in the transp






48. Flat land covered with tall grass and wildflowers.






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






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