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. A mixture containing more than one type of metal atom. Example - bronze is a mixture of copper and tin.






2. When water is trapped in a joint freezes - it forces the joint open and may cause the joint to grow.






3. Irregular or blob-shaped intrusions that range in size from tens of meters across to tens of kilometers across.






4. Type of soil; forms from sediment that has been carried in from elsewhere. Include those formed from deposits left by rivers - glaciers - or wind.






5. A nearly horizontal - tabletop-shaped tabular intrusion - parallel to layering within the earth.






6. A sedimentary bed that has developed a reddish color. The red comes from a film of iron oxide (hematite) that forms on grain surfaces.






7. Distinguishing feature of magma; the process where magma sits in a magma chamber before completely solidifying - it may incorporate chemicals derived from the walls rocks of the chamber.






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






9. 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.






10. A place where three plate boundaries intersect at a point.






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






12. Refers to the proportions of different chemicals making up the rock - and thus the proportion chemicals affects the proportions of different minerals constituting the rock.






13. 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






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






15. 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.






16. A cut and finished stone ready to be used in jewelry. Examples - diamond - ruby - sapphire - emerald.






17. Tree roots that grow into joints can push those joints open in this process.






18. The speed of the movements of the plates with respect to the speed of the other plates' movements. Absolute plate velocity is a measure of the movement of any plates relative to a fixed point in the mantle.






19. The removal of soil by running water or by wind.






20. A plate boundary at which one plate slips along the side of another plate. No new plate is formed and no old plate is consumed. But the grinding between the plates generates frequent and destructive earthquakes.






21. In degrees Celsius - the high temperatures at which igneous rocks freeze; the freezing of liquid melt to form solid igneous rock represents the same phenomenon as the freezing of water - except at much higher temperatures.






22. Occurs within the asthenosphere - actively drags plates along and attributes partially for the mechanism shifting the plates along the Earth's surface.






23. An insulated - tunnel-like conduit through which lava moves within a flow.






24. Chemical weathering occurring in warm - wet climates can produce a layer of rotten rock - over 100km thick.






25. Mineral class; the anion within these types of minerals is a halogen ion (such as chlorine or fluorine).






26. On a gem are the ground and polished surfaces made with a certain type of machine.






27. Magma type; contains only about 38% to 45% silica. Extreme form of mafic magma.






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






29. Places where intrusive igneous rock creates tabular intrusions cutting across rock that does not have layering - this nearly vertical - wall-like tabular intrusions is formed. Cut across layering within the earth.






30. Type of rock; accumulated sand bars - within are mineral grains of quartz and feldspar - this sediment if buried and lithified.






31. A mineral's growth that is uninhibited - has well-formed crystal faces.






32. The process by which sediment settles out of the transporting medium.






33. Core division; from a depth of 5155km down to Earth's center at 6371km. A radius of about 1220km - is solid iron-nickel alloy - can reach temperature of 4700 degrees C. Solid in nature because of subjection to greater pressure - keeps atoms from wand






34. The most important mineral group; comprise the most rock-forming minerals - they are very abundant due to large % of silicon and oxygen in Earth's crust. Examples - oxygen - silica - aluminum.






35. Rocks that consist of mineral crystals that intergrow when the melt solidifies - interlocking structure. Examples - granite and rhyolite.






36. A rock made of solid mass of glass - or of tiny crystals surrounded by glass. Reflect light as glass does and tend to break conchoidally. Examples - obsidian - tachylite - pumice.






37. A sediment-filled depression; in an area where the lithosphere has subsided.






38. A proposition in 1960 - by Princeton University professor Harry Hess - that continents drift apart because new ocean floor forms between them by this process.






39. Sea-floor spreading proponents - Hess and others realized that in order for the circumference of the Earth to remain constant through time - ocean floor must eventually sink back into the mantle. This sinking process consumes the ocean floor between






40. The four classes of igneous silicate rocks based on the proportion of silicon to iron and magnesium. As the proportion of silicon in a rock increases - the density decreases - thus felsic rocks are less dense than mafic. In order - from greatest to l






41. Contributes to formation of soil; occurs when rainwater percolates through the debris and carries dissolved ions and clay flakes downward - This is the region where the downward transport occurs.






42. Volcanic landform; steep walled depression at the summit - size exceeds one kilometer in diameter.






43. Layering in sedimentary rocks.






44. Refers to the chemical reactions that alter or destroy minerals when rock comes in contact with water solutions or air.






45. A linear belt in which continental lithosphere pulls apart - the lithosphere stretches horizontally.






46. A pluton formation theory; a process during Which magma assimilates wall rock - and blocks of wall rock break off and sink into the magma.






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






48. The crust moves away from the Mid-Atlantic Ridge axis at a rate of 1cm per year. This velocity of sea-floor spreading is determined by the relationship between the paleomagnetic anomaly-stripe's width and the reverse polarity duration - the data reve






49. Type of lava flow; higher silica content - greater viscosity - forms a large mound above the vent out of a volcano.






50. Some minerals have distinctive properties - such as calcite which reacts with dilute hydrochloric acid to produce carbon dioxide. Dolomite also reacts with acid - graphite can make clear markings - magnetite attracts a magnet - halite tastes salty -







Sorry!:) No result found.

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