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What Gives a Flame Its Color?

The orange-yellow flame of a campfire may bring back memories of singing with family and friends and enjoying food that's too charred to actually taste good. But have you ever noticed that all campfire flames appear very close to the same color?

Though different from campfires, flames from butane lighters also appear very similar in color, no matter what lighter brand you have. And propane flames, whether from your grill or a blowtorch, are bluer than butane flames and campfires.

Why are flame colors unique to different kinds of fuel? In today's challenge, you will answer this burning question.

This Daily Challenge has expired

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