Test your basic knowledge |

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. Alfred Wegener's suggestion that the positions of the continents change through time as they drift away from each other. The flaw was that he lacked a plausible moving mechanism.






2. Sedimentary rock composed of calcite or dolomite.






3. Places with particularly voluminous quantities of magma erupting or intruding.






4. Type of igneous rock composition; composed of light-colored silicates - very rich in felsic (feldspar and silica). Major constituent of continental crust.






5. Type of volcano; most are adjacent to the Pacific - larger in size - interbedded lavas and pyroclastics - consist of alternating layers of lava and tephra - most violent type of activity - may produce nuee ardente or lahars.






6. Process where a convergent boundary ceases to exist when a piece of buoyant lithosphere - such as a continent or island arc - moves into the subduction zone. Yield some of the most spectacular mountains/mountain ranges on the planet including the Him






7. Cause of melting; when magma rises up from the mantle into the crust - it brings heat with it which raises the temperature of the surrounding crustal rock - and in some cases melting occurs.






8. Fracture type; smoothly curving - clamshell-shaped surfaces; typically formed in quartz.






9. The fit of the continents - locations of past glaciations - the distribution of equatorial climatic belts - the distribution of fossils - and matching geologic units.






10. Some rock bodies appear to contain distinct formations - defined either by bands of different compositions or textures - or by the alignment of inequant grains so that they trend parallel to one another.






11. Sedimentary rock consisting of cemented together solid fragments and grains derived from preexisting rocks.






12. A column of very hot rock that flows upward until it reaches the base of the lithosphere. In this model - such deep-mantle plumes form because heat rising from the Earth's core is warming rock at the base of the mantle. A possible explanation to the






13. Rock made by the freezing of magma underground - after it has pushed its way (intruded) into preexisting rock of the crust.






14. Elongate submarine mountain ranges whose peaks lie only about 2-2.5km below sea level. Consist of a ridge axis - are roughly symmetrical - and can include escarpments - axial troughs - and valleys. Examples - Mid-Atlantic Ridge - East Pacific Rise -






15. Two different minerals which have the same composition but have different crystal structures.






16. Soil section below the A-horizon; a soil level that has undergone substantial leaching but has not yet mixed with organic material. Because it lacks organic materials - this horizon tends to be lighter than the A-horizon. Part of the zone of leaching






17. The angle between the direction that a compass needle points at a given location and the direction of the 'true' (geographic) north. Through this process - the magnetic poles never stray more than 15 degrees of latitude from the geographic pole.






18. Mineral class; consist of metal cations bonded by oxygen anions. Examples - hematite and magnetite. Some contain a relatively high proportion of metal atoms - and thus are ore minerals.






19. A process occurring when sea level falls - the coast migrates seaward.






20. A name for any kind of unconsolidated debris that covers bedrock. Includes both soil and accumulations of sediment that have not evolved into soil.






21. A reaction during which an element loses electrons - commonly takes place when elements combine with oxygen.






22. Physical property of a mineral; refers to the way a mineral surface scatters light. Metallic versus non-metallic in nature.






23. A mafic rock with large grains. Intrusive - phaneritic igneous rock.






24. Relatively small - elongated ridges that form on a bed surface at right angles to the direction of the current flow of the rock.






25. Natural bond connecting rocks; mineral material that precipitates from water and fills the space between grains.






26. Because different soil-forming processes operate at different depths - soils typically develop into these distinct zones. These zones can be arranged vertically into a soil profile.






27. A mafic rock with small grains. Extrusive - aphanitic igneous rock.






28. Clast size - clast composition - angularity and sphericity - sorting - and character of cement.






29. Along much of the perimeter of the Pacific Ocean - the ocean floor reaches astounding depths of 8-12km. These areas define elongate troughs - and they border volcanic arcs - the curving chains of active volcanoes.






30. Process occurring in arid climates - dissolved salt in groundwater precipitates and grows as crystals in open pore spaces in rocks. This process pushes apart the surrounding grains and so weakens the rock that when exposed to wind or rain - the rock






31. Some rocks develop their magnetization - their ability to produce a magnetic field - at the time that the rocks themselves formed. Such rocks - preserve a record of the Earth's magnetic field at known times in the past.






32. Magma viscosity depends upon temperature - volatile content - and silica content. Hotter magma - more volatiles - and mafic magma all have less viscosity.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


33. An ultramafic rock with large grains. intrusive - phaneritic igneous rock.






34. The nature of Earth's magnetic field - like the familiar magnetic field around a bar magnet - has a North and South pole. The magnetic field is drawn with field lines - the paths along Which magnets would align - or charged particles would flow - if






35. Sedimentary rocks consisting of carbon-rich relicts of plants.






36. A plate boundary at which two plates move apart from one another by process of sea-floor spreading. Mid-ocean ridges or simply a ridge. New crust is formed at ridges through the buoyant rising of magma from beneath the surface and solidifies to creat






37. Actively slipping segment of a fracture zone between two ocean ridge segments - these faults make a third type of plate boundary - transforms.






38. The combination of processes that separate rock or regolith from its substrate and carry it away. Involves abrasion - plucking - scouring - and dissolution - and is caused by air - water or ice.






39. Coarse pyroclastic debris - apple to refrigerator-sized fragments. Chunks of preexisting igneous rock or large lava blobs which discharge from volcanic eruptions.






40. During this process - water chemically reacts with minerals and breaks them down - working faster in slightly acidic water.






41. An envelope of gas surrounding Earth consisting of 78% nitrogen (N2) and 28% oxygen (O2) - with minor amounts 1% of argon - carbon dioxide - methane - etc. And 99% of the gas in the atmosphere lies below 50km.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


42. Mineral class; the fundamental component within these types of minerals in the Earth's crust is the silicon-oxygen tetrahedron anionic group - a silicon atom surrounded by four oxygen atoms that are arranged to define the corners of a tetrahedron - a






43. Highest soil horizon; consists almost entirely of organic matter and contains barely any mineral matter. Surface level has 'litter' and deeper it contains 'humus'. Part of the zone of leaching.






44. Breaks intact rocks into unconnected grains or chunks - collectively called debris or detritus. Grain size from largest to smallest: boulders - cobbles - pebbles - sand - silt - mud/clay.






45. Mineral crystal formation type; form from a solution - meaning that atoms - molecules - or ions dissolved in water bond together out of water.






46. Sedimentary rocks made up of minerals that precipitate directly from water solutions.






47. Type of igneous rock composition; composed of dark silicates and calcium-rich feldspar - referred to as mafic (magnesium and iron). Make up the ocean floor/volcanic islands.






48. The intrusion of numerous plutons in a region - produces a vast composite body that may be several hundred kilometers long and over 100km wide; an immense body of igneous rock.






49. The layering nature of sedimentary rocks - surface features of layers formed during deposition - and the arrangement of grains within layers.






50. Deeper sublayer of the mantle - depth of 660km to 2900km.






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests