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






2. A ball of ice and dust & whose orbit is a long & narrow ellipse.






3. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.






4. Any accumulation of material & by settling from water or air & chemical precipitation & evaporation from solution & etc.






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






6. (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.






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






8. The line that separates one drainage basin from another.






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






10. A small & dust-bearing whirlwind.






11. A spring whose temperature is 6.5o C or more above mean annual air temperature.






12. The outermost part of the core. It is liquid & about 1 &700 km thick & and separated from the inner & solid core by a transition zone about 565 km thick.






13. Any of various minerals prized for beauty & durability & and rarity. A few noncrystalline materials of organic origin (e.g. & pearl & red coral & and amber) also are classified as gemstones.






14. The line formed by the intersection of the axial plane of a fold with a bedding plane & marking where the bed shows its maximum curvature.






15. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.






16. The first scientist to make systematic use of the telescope in looking at the heavens.






17. A division of geologic time next shorter than a period. Example: the Pleistocene epoch is in the Quaternary period.






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






19. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






20. To wash or scrub away.






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






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






23. 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.






24. A coral reef attached directly to the mainland.






25. A disease-causing organism or entity & such as a bacterium or virus.






26. To preserve & or to avoid wasteful use.






27. The low spot between two successive waves.






28. A ball of ice and dust & whose orbit is a long & narrow ellipse.






29. Iron & aluminum & magnesium & manganese & and titanium. Ores of the abundant metals only need to be 3 - 5 times as metal-rich as average rock.






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






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






32. A small ice sheet.






33. 1. A low & bowl-shaped area of land surrounded by higher lands. 2. any large depression in which sediments are deposited.






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






35. The closest star to Earth besides the sun. It is approximately 4 light years away.






36. 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.






37. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.






38. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.






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






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






41. Soil conditions prevailing in area whose mean annual temperature is 0o C.






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






43. 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.






44. A waterway from open ocean into a lagoon.






45. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






46. A delta formed at both sides of a tidal inlet.






47. 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.






48. Plutonic. Antonym of extrusive. Pertaining to igneous rocks or features formed by the emplacement of magma in pre-existing rocks.






49. 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.






50. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.