[[Image:Ugdfiyjfhj6.jpg|right|thumb|A forest fire.]]
'''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. The symbol of the [[Holy Ghost]] is fire but it is used frequently to depict [[Hell]].
==Physics of fire==
Types of heat transfer: Radiant, conductive, and convective. Conductive heat is transferred by direct contact with the heat source. Convective heat is transferred by hot gases from the heat source, often to objects above the heat source since heat rises. Radiant heat is transferred through radiation of the heat not involving hot gases. To illustrate, when you hold a metal spoon in a cup of hot coffee and feel the spoon get hot, this is conductive heat. When you stand near a campfire and feel the heat on your face, this is radiant heat. When hot steam is rising from a boiling pot of water, this is convective heat.
==Christian symbolism==
The symbol of the [[Holy Ghost]] is fire but it is used frequently to depict [[Hell]].
==See also==