Taken from TED-Ed, a bit of education on fire science that you may know, may not know or just need a quick refresher.
From Elizabeth Cox, Educator:
Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in endless incarnations... But what exactly are you looking at? Elizabeth Cox illuminates the science behind fire.