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'''Fire''' is the result of a [[chemical]] process that produces [[heat]], [[light]], and [[smoke]].  Fire is dependent on oxygen for [[combustion]] and will spread if not controlled.  

'''Fire''' is the result of a [[chemical]] process that produces [[heat]], [[light]], and [[smoke]].  Fire is dependent on oxygen for [[combustion]] and will spread if not controlled.  

==Physics of heat and fire==

==Physics of fire==

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The "fire triangle" is a term which refers to the three elements necessary for a fire to burn: [[oxygen]], [[fuel]], and a source of [[heat]].  Remove any one of the three and the fire can no longer burn.  All firefighting tactics are based on removing one or more of the three elements in the fire triangle.

The "fire triangle" is a term which refers to the three elements necessary for a fire to burn: [[oxygen]], [[fuel]], and a source of [[heat]].  Remove any one of the three and the fire can no longer burn.  All firefighting tactics are based on removing one or more of the three elements in the fire triangle.