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8th Science: 3.2

Across
the removal of ore from the earth
reddish-orange metal
Extracted from the earth
used as fuel for nuclear reactors
The most beautiful minerals
used to prevent corrosion and to make coins
used in stainless steel, electrical heating elements, scientific instruments, magnets
Down
second most common metal in the earth’s crust
science of extracting metals from the earth and preparing them for use
any material that contains a valuable metallic element
mixed with other metals to increase strength or alter color
the most valuable precious stone
used to coat other metals to prevent corrosion
removes the impurities by heat, chemical action, or a combination of both until a desired level of purity is obtained
shapes ore into desired shape
used for radiation shielding, auto batteries, small arms ammo