Why does a campfire go out?

Answer 1

A camp fire, or any fire is a chemical reaction called combustion Fire needs three things, fuel, oxygen and a source of combustion.When the fuel reaches its"kindling" point, which is the point at which combustion begins in the presence of oxygen it "burns". But when the fuel gets used up there is no more chemical reaction thus fire goes out.

If the fire wood is wet, when you try to start the fire, the kindling wood may not have enough heat to raise the firewood's temperature to its' combustion point. On thr other hand If heat is removed from the fuel then combustion will stop. So cold water puts a fire out because it cools off the fuel-not because it smothers it. And. If the wind blows the fire away from the fuel, then there is no more combustion. But as in California, the fire might raise something else that it hits to its kindling point, and then whoosh! a really big campfire. Another way a campfire goes out is by removing the other part of the chemical reaction, oxygen. It's own ashes could smother it.