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. Type of soil; forms in tropical regions where abundant rainfall drenches the land during the rainy season - and the soil dries during the dry season.






2. Sublayer of the mantle - depth of 660km.






3. 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






4. Forms a 2885-km-thick layer surrounding the core. In terms of volume - it is the largest part of the Earth. It consists entirely of ultramafic rock - peridotite.






5. Rocks with a fragmental texture consist of igneous fragments that are packed together - welded together - or cemented together after having solidified. Examples - pyroclastic rocks such as tuff or breccia.






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






7. Heat from an intense surface fire bakes and expands the outer layer of the rock. On cooling - the layer contracts - causing the outer part of the rock spall - or break off in sheet-like pieces.






8. Chemical weathering during Which minerals dissolve into water.






9. Natural cracks that form in rocks due to removal of overburden or due to cooling.






10. Type of sedimentary soil/rock; Calcite in a pedocal soil accumulates in the B-horizon and may cement soil together - creating this solid mass.






11. Outer surface level of Earth; composed of granite - basalt - and gabbro. Continental: mostly about 35-40km thick . Oceanic: about 7-10km thick. Oxygen - by far the most abundant element.






12. Type of volcanic eruption; takes place when water gains access to the hot rock around the magma chamber and suddenly transforms into steam - a pyroclastic eruption involving the reaction of water with magma.






13. An intrusion starting to inject between layers but then dome upwards - creating this blister-shaped intrusion.






14. Mineral group; feldspars - quartz - muscovite - clay minerals.






15. The distance of the deepest well ever drilled - hole in northern Russia. Penetrates only about 0.03% of the Earth.






16. Subsoil - ions and clay leached and transported down from above accumulate here. As a result - new minerals form - and clay fills open spaces. Part of the zone of accumulation.






17. Iron (35%) - oxygen (30%) - silicon (15%) - and magnesium (10%) - and the remaining 10% consists of 88 naturally occurring elements.






18. Mineral crystal formation type; from directly from a vapor - occurs around volcanic vents or around geysers. At such locations - volcanic gases or steam enter the atmosphere and cool - so certain elements cannot remain in gaseous form.






19. Physical property of a mineral; refers to the shape (morphology) of a single crystal with well-formed crystal faces - or to the character of an aggregate of many well-formed crystals that grew together as a group. Depends on the internal arrangement






20. 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






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






22. An exposure of bedrock.






23. Inorganic limestone; rock composed of crystalline calcium carbonate formed by chemical precipitation.






24. 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






25. If a stoped block does not melt entirely - but rather becomes surrounded by new igneous rock - it becomes this; xeno - meaning foreign.






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






27. The most common minerals in the Earth. Contain silica (SiO2) mixed in varying proportions with other elements (typically iron - magnesium - aluminum - calcium - potassium - and sodium).






28. After sand has lost its feldspar composition due to weathering over time - sediment composed entirely of quartz grains gets buried and lithified to form this type of rock.






29. In addition to islands that rise above sea level - seamounts have been detected (isolated submarine mountains) - once volcanoes but no longer erupt.






30. The transformation of loose sediment into solid rock.






31. When silt and clay accumulate in the flat areas bordering a stream - lagoon - or delta - the silt when lithified becomes this type of sediment. And the mud - when lithified - becomes another type of sediment - also known as shale.






32. Type of volcanic eruption; produce mainly lava flows - yield low-viscosity basaltic lavas.






33. Distinguishing feature of magma; the process where magma changes composition as it cools because formation and sinking of crystals preferentially remove certain atoms from the magma.






34. Physical property of a mineral; represents the density of a mineral - as specified by the ratio between the weight of a volume of the mineral and the weight of an equal volume of water a 4 degrees C.






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






36. 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






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






38. The way in which the atoms are packed together within a mineral by chemical bonds. Five difference types of bonding can occur - covalent - ionic - metallic - Van der Waal's - and hydrogen.






39. A reference to the pattern structure of a mineral. A material in which atoms are fixed in an orderly pattern - a crystalline solid.






40. Solids composed of metal atoms (such as iron - aluminum - copper - and tin). Within this type of solid - outer electrons are able to flow freely.






41. Low-viscosity (basaltic) lava flows out of a volcano easily - whereas high-viscosity (andesitic and rhyolitic) lava can clog and build pressure within a volcano. Basaltic eruptions are typically effusive and produce shield volcanoes - whereas rhyolit






42. The rate of increase in temperature - decreases with increasing depth. The dashed lines represent the solidus and liquidus for mantle rock (peridotite). The solidus line defines the conditions of pressure and temperature at Which mantle rock begins t






43. Cause of melting; the variation in temperature with depth is expressed in the geotherm; because pressure prevents melting - a decrease in pressure can permit melting. Specifically - if the pressure affecting hot mantle rock decreases while the temper






44. Forms from a chemical reaction between solid calcite and magnesium-bearing groundwater.






45. 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.






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






47. Develops because mid-ocean ridges lie at a higher elevation than the adjacent abyssal plains of the ocean. The surface of the sea floor overall slopes away from the ridge axis. Gravity causes the elevated lithosphere at the ridge axis to push on the






48. Center of the Earth - consists mainly of iron alloy.






49. Distinct internal laminations within a ripple or dune that are inclined at an angle to the boundary of the main sedimentary layer. Form as a consequence of the evolution of dunes or ripples.






50. 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.







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