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






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






3. 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.






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






5. The pattern of water circulation from the ocean to the atmosphere to the land and back to the ocean.






6. 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






7. Verifying assessments made from satellite data by doing direct & 'on-the ground' measurements.






8. The amount of material a stream carries in suspension.






9. The persistence of wind-formed waves after wind ceases.






10. Open pit mining & typically for coal.






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






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






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






14. An era of time during the Phanerozoic eon lasting from 245 million years ago to 66.4 million ago.






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






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






17. Sediments produced directly by the life processes of plants or animals.






18. The reflection of light on a given mineral's surface & classified by intensity and quality.






19. That portion of the resources for a valuable mineral commodity that can be extracted from the Earth at a profit today.






20. Scratches & or small channels & gouged by glacier action. Occur on boulders & pebbles & and bedrock. Striations along bedrock indicate direction of ice movement.






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






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






23. Produced as a wave steepens and falls forward as the wave nears the shore.






24. A worldwide change in sea level & such as caused by melting glaciers.






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






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






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






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






29. Lacking in rainfall & very dry.






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






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






32. Long narrow beaches separated in many places from the mainland by lagoons.






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






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






35. The sudden fall of one or more large pieces of a rock from a cliff.






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






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






38. The accumulation of material in layers or beds.






39. 1. A mass of sand & gravel & or alluvium deposited on the bed of a stream & sea & or lake & or at the mouth of a stream 2. A unit of pressure & approximately equal to atmospheric pressure at sea level.






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






41. A general term including both oil and natural gas.






42. The distance light travels through a vacuum in one year.






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






44. The theory of Plate Tectonics states that the Earth's crust is fragmented into a dozen or more large and small pieces floating on a semi-molten mantle.






45. Gases (primarily water and carbon dioxide & but also a variety of sulfur and nitrogen compounds and gaseous hydrocarbons) that trap the Sun's heat in the atmosphere.






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






47. A sedimentary rock composed primarily of biogenic sediments.






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






49. A hot & gaseous & self-luminous celestial body & as the Sun.






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