How Does Water Put Out Fire

This question just popped into my head. I bet my daughter will ask it when she’s a bit older. Pause for a moment and think, how would you answer it?

Think carefully. A serious answer, please. No wise cracks.

This detailed explanation is probably best saved for when my daughter is in middle school. If she asked me right now, I’d probably just say, “Because water cools things down, so the fire can’t keep burning.”

But that’s fine. I’m the one who’s curious, so let’s dive deeper.

What is Fire?

To understand how to extinguish a fire, you first have to understand fire itself.

High school chemistry taught us that combustion requires three elements, forming the “fire triangle”:

Fuel: Something that can burn, like wood or gasoline. These are essentially reducing agents.

Oxidizer: Somethin…