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 current geologic era & which began 66.4 million years ago and continues to the present.






2. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.






3. The two days of the year on which neither hemisphere is tilted toward or away from the sun.






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






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






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






7. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






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






9. A person who makes maps.






10. Molten rock & containing dissolved gases and suspended solid particles. At the Earth's surface & magma is known as lava.






11. A lake in an abandoned meander.






12. Till deposited from main body of glacier during ablation.






13. A famous scientist who proposed that the Sun was the center of the solar system not the Earth. (Heliocentrism)






14. 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.






15. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.






16. Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. Longitude lines extend vertically & from pole to pole on a globe.






17. The tectonic region in which two plates meet.






18. A planetary satellite.






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






20. The generally dark & more or less stable part of the organic matter in a soil & so well decomposed that the original sources cannot be identified.






21. A general term for a relatively hard layer of soil at or just below the ground surface & cemented by silica & iron oxide & calcium carbonate & or organic matter.






22. A minor tremor that precedes an earthquake. An increase in seismicity may signal that a major release of strain energy is about to occur.






23. The areas of & in & or constituting a city.






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






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






26. A narrow strip of land that has water on either side and connects two larger bodies of water.






27. A sea level change due to change in load on Earth's crust.






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






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






30. The arrangement of rock units in the proper chronological order from youngest to oldest.






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






32. Distance over which wave-forming winds blow.






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






34. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






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






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






38. An earthquake that follows and has its epicenter near a larger earthquake.






39. A building that contains one or more telescopes.






40. The process of mountain building.






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






42. The environment where a particular plant or animal is normally found.






43. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






44. An imaginary circle around the earth that represents the halfway mark between the North and South Poles and establishes the boundary between the Northern and Southern Hemispheres.






45. An area of land that delivers runoff water & sediment & and dissolved substances to surface water bodies & such as rivers or lakes. All watersheds consist of boundaries & a basin and collection areas.






46. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.






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






48. A measure of acidity.






49. A narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






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