science test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| naturally occurring | made from nature
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| inorganic | made from non-living plants or organisums
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| soild | an object that has a definite shape and volume
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| definite chemical formula | when a mineral has to have a certin mineral and a certin amount of that mineral to be the same mineral
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| crystal structure | a crystal is a solid, goemetric form that result from a repeating pattern of atoms or molecules
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| color | the hue of a mineral (not a good way to identifiy a mineral)
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| streak | the color of a minerals powder
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| luster | the way a mineral reflects light
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| clevage | a way that a mineral breaks, smooth and have flat surfaces
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| fracture | a way that a mineral breaks, in no form or pattern, unevenly
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| density | the amount of matter in a given amount of space
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| hardness | the minerals resistence to being scratched
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| special properties | special properties (naturally magnetic, double image...etc...)
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| alloy | a solid mixture of 2 or more elements, at least 1 is a metal
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| ore | a rock that contains a metalor other useful mineral that can be sold for profit
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| what are the 3 types of mines? | open pit, strip, and shaft mines
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| open pit mine | miner use giant earth moving equitment to dig a tremendous pit and remove ore deposits
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| strip mine | earthmoving equipment scraps away soil to expose ore
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| shaft mine | often have a network of tunnels that extend deep into the groud following the viens of ores
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| what scale is used to rate the hardness of a mineral? | the mohs hardness scale
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| what is the softest mineral on the mohs hardnesas scale? what is its rating? | talc with a rating of 1
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| what is the hardest mineral on the mohs hardness scale and what is its rating? | diamond with a rating of 10
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| what are the 3 ways a MINERAL CAN BE FORMED? | by metamorphism, from solutions, and when magma and lava cool
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| what are the 3 different types of rock? | igneous rock, metamorphic rock, and sedimentary rock
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| how does an igneous rock form and what are the 2 subgroups? | when magma and lava cool and the 2 subgroups are extrusive and intrusive
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| how does metamorphic rock form and what are the subgroups? | it forms through heat and pressure, and the 2 groups and non-foliated(without parallel bands) and foliated( with parallel bands)
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| how does sedimentary rock form and what are the subgroups? | sedimantary rock goes through the processes of weathering, erosion, deposition, cementation, and compaction and the subgrougs are clastic, chemical and organic
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| organic sedimentary rock | sedimentary rock that formed from living or once living things
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| clastic sedimentary rock | formed when sediments buried compacted and cemented together by calcite or quartz
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| chemical sedimentary rock | formed when when water, usually seawater, evaporates
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| what are the processes in which ignous rock forms? | melting and cooling
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| what are the processes in which metamorphic rock forms? | heat presure and chemical reaction
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| what are the processes in which sedimentary rock forms? | weathering erosion deposition compaction cementation
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