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what is fire?

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Melissa_dwl | 16:39 Tue 16th Jul 2002 | How it Works
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gas?
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Avatar Image wmissildine
Rapid oxidation of combustible materials accompanied by a release of energy in the form of heat and light.
20:06 Tue 16th Jul 2002
Avatar Image Hamish
I assume you mean what is a flame made from. A flame is a plasma - an ionized gas. Hamish
10:31 Wed 17th Jul 2002
Avatar Image gepisar
When something burns, it is being oxidised. This causes an exothermic reaction, the by-product being heat (energy) This energy excites atoms and electrons. The electrons jump into a higher energy state, and at sometime later "cool" by releasing this higher state energy. This energy is given off as electomagnetic radiation, (infra-red [heat]) and normal light which you can see (yellow/red flame...) :-))
23:12 Tue 30th Jul 2002

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