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[–]Tom_Bombadil 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

Fire is:

  • Pyrolysis
  • Chemiluminescence
  • Oxidation
  • Incandescence

Edit: Answered this before watching the video, because PBS shamelessly ripped this of from What is a Flame by Ben Ames.

He was the winner of this contest:.

What Is a Flame?: The First Prize-Winner at Alan Alda’s Science Video Competition

The song at the end is MY JAM!

P.S. The song contains the answer to the question.