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. 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.






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






3. 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






4. Turbulent stream water flow down a steep gradient & but not as steep as in a waterfall.






5. Temporary accumulations of sediments that collect between low and high water marks.






6. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






7. The point on the Earth's surface directly above the focus of an earthquake.






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






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






10. 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






11. A planetary satellite.






12. Woodland that usually gets at least 100 inches of rain each year.






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






14. A waste material that contaminates air & water & or soil.






15. A permeable region of rock or soil through which ground water can move.






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






17. A coral reef attached directly to the mainland.






18. A sedimentary rock composed primarily of biogenic sediments.






19. 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.






20. A reverse fault on which the dip angle of the fault plane is 15 degrees or less.






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






22. 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






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






24. A steep or vertical cliff & either above or below sea level.






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






26. The processes (mechanical and chemical) responsible for the wearing away & loosening & and dissolving of materials of the Earth's crust.






27. (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.






28. A vent in the surface of the Earth & from which lava & ash & and gases erupt.






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






30. A layer of sedimentary rock; plural is strata.






31. The Sun with all the celestial bodies that revolve around it.






32. Any place where bedrock is visible on the surface of the Earth.






33. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






34. A large amount of gas and dust in space & spread out in an immense volume.






35. A small ice sheet.






36. A flat & dry plain covered with short grass.






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






38. Extending across a continent.






39. The process of mountain building.






40. A hydrocarbon (coal or petroleum) that can be extracted from the Earth for use as a fuel. Fossil fuels are non-renewable energy sources.






41. The internal resistance to flow in a liquid.






42. Jupiter is named after the Roman king of the gods. It is the fifth planet from the Sun.






43. A flat & dry plain covered with short grass.






44. The portion of the continental margin that extends as a gently sloping surface from the shoreline seaward to a marked change in slope at the top of the continental slope . Seaward depth averages about 130 m.






45. A giant structure that contains hundreds of billions of stars.






46. 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.






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






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






49. Any seismic wave that travels through the body of Earth & rather than along its surface.






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