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 layer of gases (air) & that surrounds a planet or moon.






2. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






3. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.






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






5. 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.






6. 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.






7. The amount of dissolved salt in water.






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






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






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






11. 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






12. 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






13. A floating ice sheet extending across water from a land-based glacier.






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






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






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






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






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






19. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






20. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.






21. The portion of the continental margin that lies between the abyssal plain and the continental slope. The continental rise is underlain by crustal rocks of the ocean basin.






22. To wash or scrub away.






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






24. The effect of water and carbon dioxide absorbing outgoing infrared radiation & raising a system's temperature. The term is generally used with reference to the Earth's temperature & although it can also be applied to other systems & such as greenhous






25. Heat transport by direct transfer of energy from one particle to another & without moving the particle to a new location.






26. A coral reef attached directly to the mainland.






27. A flood that rises and falls very rapidly.






28. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.






29. A steep-sided rounded extrusion of highly viscous lava squeezed out from a volcano and forming a dome-shaped or bulbous mass above and around the volcanic vent. The structure generally develops inside a volcanic crater.






30. The vertical distance between the crest and adjacent trough of a wave.






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






32. A measure of acidity.






33. A protective wall built offshore and usually parallel to the shore.






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






35. Fossils formed when water containing minerals leaks into a mold. The minerals harden to form a copy of the original structure or organism.






36. Enormous & thick sheets of rock that are part of the Earth's upper mantle that move and adjoin each other along zones of seismic activity. Many tectonic plates extend underneath both continents and sea floor.






37. Heat transport by moving particles & and the thermal energy that they carry & to a new location.






38. Heat transport by moving particles & and the thermal energy that they carry & to a new location.






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






40. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.






41. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.






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






43. A small ice sheet.






44. 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






45. Containing moisture.






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






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






48. An abandoned meander .






49. (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.






50. 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.