The "scratch test" is used to determine the ______ of a material.
hardness
toughness
strength
density
The "scratch test" is used to determine the HARDNESS of a material.
Asked 12/17/2015 2:15:47 PM
Updated 12/17/2015 2:35:33 PM
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jeifunk [12/17/2015 2:35:33 PM]
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