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 type of thermal spring which ejects water intermittently with considerable force.






2. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.






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






4. The zones of seismic activity long which plates are in contact.






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






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






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






8. The region of a shore that is covered at high tide and exposed at low tide.






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






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






11. The initial point within the Earth that ruptures in an earthquake & directly below the epicenter. The point within the Earth which is the center of an earthquake & at which strain energy is first released and converted to elastic wave energy.






12. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






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






14. 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.






15. The process by which a binding & or cementing & agent is precipitated in spaces among individual particles of a deposit. Common cementing agents are calcite & quartz & and dolomite.






16. 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.






17. An abandoned meander .






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






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






20. Containing moisture.






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






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






23. Living on land.






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






25. The resistance of a mineral to scratching & as measured by the Mohs scale.






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






27. 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






28. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






29. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






30. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.






31. The peak flow of water that tops the banks of a stream channel.






32. An atmospheric shield providing the Earth with protection from ultra-violet rays which can cause sun burn & skin cancer and the destruction of the delicate plant life which supports the planet's food chain.






33. The partial or complete blocking from view of one object by another.






34. To preserve & or to avoid wasteful use.






35. Of or relating to or containing basalt & a dark & dense & extrusive rock that has a silica content of 40% to 50% and makes up most of the ocean floor.






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






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






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






39. Any object that revolves around another object in space.






40. Distance over which wave-forming winds blow.






41. The seaward edge of coast between low tide and effective wave action.






42. A ridge of high water associated with a hurricane and which floods over the shore .






43. A cavity in a lava & formed by the entrapment of a gas bubble during solidification of the lava.






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






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






46. The rise and fall of sea level caused by the gravitational pull of the Sun and Moon on the Earth.






47. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.






48. A post of dripstone growing up from a cave floor.






49. A hole or basin cut into bedrock of a stream by the abrasive action of pebbles and sand swirled by turbulent stream flow.






50. Water beneath the Earth's surface.