click below
click below
Normal Size Small Size show me how
Geology final
final study guide
| Question | Answer |
|---|---|
| most abundant elements in earths crust | silicon and oxygen |
| sharing of electrons is | covalent |
| a chemical element is a substance made up by atoms, all of which have the same: | number of protons |
| an example of a nonferromagneisian silicate mineral is | quartz |
| the ratio of a minerals weight to the weight of a equal volume of water is its | gravity |
| chemical elements having 8 electrons in their outermost electron shell are the | Nobel gases |
| the atomic number of an element is determined by | number of protons |
| to which of the following groups do most minerals in the earths crust belong | silicates |
| when an atom gains or loses an electron, it becomes: | ion |
| which of the fundamental forces is not involved in the structure of an atom | gravity |
| these minerals have good cleavage | carbonates |
| anions are ____ charged because they have ____ electrons | negatively, gained |
| after silicates, the most important rock-forming mineral is | carbonates |
| lacks good cleavage | quartz |
| density of minerals refers to | weight per unit volume and weight relativity to water |
| the single most abundant mineral on earth | quartz |
| this gem mineral is an oxide mineral of aluminum | sapphire |
| which is a phyllosilicate | clay minerals |
| calcite will scratch glass : true or false | true |
| most gem minerals belong to this group (except for diamonds) | silicates, oxides |
| bonding in minerals is mostly | ionic |
| the two most abundant elements in the earths crust | oxygen, silicon |
| the charged atoms that make up most crystal structures | ions |
| minerals are classified on the basis of | their negatively charged atoms (anions) |
| _________ are examples of sheet silicates | mica and clay minerals |
| the tendency of minerals to break along smooth plans | cleavage |
| most common single mineral on earth | quartz |
| all minerals are crystalline means | all minerals have a orderly internal atomic structure |
| these minerals are often water-soluble | halides |
| cations are _________ charged because they have blank _____ electrons | positively, lost |
| this gem mineral is an oxide of aluminum | ruby |
| this mineral is the same as ordinary rust and is the principle ore of iron | hematite |
| these minerals are among the leading contributors to acid rain | sulfides |
| why is pyrite not the major ore of iron | there are other ores that are better sources of iron |
| the property that causes salt to come out of salt shakers as tiny cubes | cleavage |
| which is not a pyhllosilicate | pyroxene |
| you can identify minerals by seeing if they scratch glass : True or False | true |
| most minerals belong to the following groups | sulfides,oxides |
| minerals are solids processing an orderly internal arrangement of atoms meaning that they are | crystalline |
| the silicon atom has a positive charge of 4, and oxygen has a negative charge of 2. The ion group (SiO4) has a: | negative charge of 4 |
| calcite and dolomite are | carbonate minerals |
| hardness refers to | resistance to scratch |
| the property that makes gold panning possible | density |
| dense, metallic in luster, often have cubic crystals | sulfides |
| have good cleavage and fizz in acid | carbonates |
| light in color and weight, good cleavage, and often water-soluble | halides |
| mica | sheet silicates |
| quartz | can scratch glass |
| calcite | dissolves in acid |
| oceans cover approximately how much of the earth | 70 |
| the continents cover approximately how much of the earth | 30 |
| energy that drives ocean currents | wind |
| the carioles effect | is caused by earths rotation |
| the daily tidal wave is least during the _____ tide | neap |
| essay question: list 5 things that cause continental drift | gps, puzzle pieces, mountains, ring of fire, fossils |