[tex]A \: theory \: is \: a \\ well \: - \: substantiated \\ explanation \: of \: an \: aspect \: of \\ the \: natural \: world \: that \: can \\ incorporate \: laws, \\ hypotheses \: and \: facts. \: ... \\ A \: theory \: not \: only \\ explains \: known \: facts; \: it \\ also \: allows \: scientists \\ to \: make \: predictions \: of \\ what \: they \: should \: observe \\ if \: a \: theory \: is \: true.[/tex]
