Changes

A shiny, [[solid]] substance, such as [[iron]].  They contrast with the [[nonmetal]]s. It is very difficult, if not impossible, to break metals. Except when they are very easy to break, as in the case of [[aluminium]], [[lead]], cast [[iron]], [[tin]], [[copper]], [[gold]], [[silver]], and many others.

A shiny, [[solid]] substance that conducts heat and electricity, such as [[iron]].  They contrast with the [[nonmetal]]s, which are brittle, non-conductive, and dull. It is very difficult, if not impossible, to break metals because of their properties of ductility and malleability.  

Also, variety of rock and roll known for its bone crushing riffs and facemelting guitar solos.

 

Metal is a variety of rock and roll known for its bone crushing riffs and facemelting guitar solos.