Eli5: If fire is not plasma, what is it?

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Just read somewhere that fire is unique to earth, I don’t understand

In: Chemistry

8 Answers

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Fire is a rapid chemical reaction between a fuel (like wood or gas) and oxygen in the air. It produces heat and light. While fire isn’t plasma, it is a hot gas. The unique conditions on Earth, like our atmosphere, make fire possible. It’s like a dance between different elements that creates the flames we see.

About the light you see:
When things burn in a fire, the heat makes the atoms in the burning material move really fast. These fast-moving atoms give off light and heat energy. So, the light in a fire comes from the super energetic atoms created during the burning process.

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