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  2. Typically, fire comes from a chemical reaction between oxygen in the atmosphere and some sort of fuel (wood or gasoline, for example). Of course, wood and gasoline don't spontaneously catch on fire just because they're surrounded by oxygen. For the combustion reaction to happen, you have to heat the fuel to its ignition temperature.
    science.howstuffworks.com/environmental/earth/geophysics/fire1.htm
    science.howstuffworks.com/environmental/earth/geophysics/fire1.htm
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    How does fire occur in a chemical reaction?Fire is the visible effect of the process of combustion – a special type of chemical reaction. It occurs between oxygen in the air and some sort of fuel. The products from the chemical reaction are completely different from the starting material. The fuel must be heated to its ignition temperature for combustion to occur.
    Why does a fire keep burning?As long as there is enough fuel and oxygen, the fire keeps burning. Fuel + oxygen (from the air) = combustion products (mainly CO 2 + H 2 O) + heat energy. In complete combustion, the burning fuel will produce only water and carbon dioxide (no smoke or other products). The flame is typically blue.
    What does 'fight fire with fire' mean?Backfiring is a technique where firefighters burn fuel in the path of a wildfire to halt its advance or redirect it. Chances are your experiences with the phrase "fight fire with fire" have more to do with the opening track on Metallica's 1984 album "Ride the Lightning " than they do with actual flames.
    What are the components of a fire?Three main components are needed for fire. First, there must be a fuel to burn. Second, oxygen must be available — after all, combustion is essentially an oxidation process that gives off heat and light. And third, there must be a heat or ignition source that allows the fire to begin.
     
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  5. When Did We Discover Fire? Here's What Experts Actually Know …

  6. WEBJan 1, 1970 · But fire is really something completely different. Earth, water and air are all forms of matter -- they are made up of millions and millions of atoms collected together. Fire isn't matter at all. It's a visible, tangible …

  7. WEB6 days ago · fire, rapid burning of combustible material with the evolution of heat and usually accompanied by flame. It is one of the human race’s essential tools, control of which helped start it on the path …

  8. Explainer: How and why fires burn - Science News Explores

  9. What Is Fire Made Of? Chemical Composition - ThoughtCo

  10. WEBThe actual flames of the fire are the release of some of the heat energy as light. These components have led to the development of the ‘fire triangle’ of fuel, oxygen and heat. Remove any one of these and fire cannot sustain …

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