| http://www.w3.org/ns/prov#value | - since fire is a combinations of various gases, chemical reactions,light and heat. matter can be defined as any thing which occupy space and have mass or weight. if we see toward fire then we can say that fire is a matter because fire can occupy space and a mixture of gases which must have a mass. share|improve this answer answered Sep 8 '11 at 8:59
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