What is fire?

I was sitting on a chair next to a camp fire. It was about 30 degrees F and it was snowing. As i sat there staring at the fire, i wondered "What exactly is fire?"
Can some one here please answer this?

ANd is this the right are to post this?

Fire is the oxidation of a combustible material releasing heat, light, and various reaction products such as carbon dioxide and water.[1] If hot enough, the gases may become ionized to produce plasma.[2] Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity might vary. Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning.

en.wikipedia.org...

Have fun reading..