If you don't have to run your heater all year, you're probably familiar with the smell that accompanies turning it on again in the fall. But what causes that smell? Is something burning? What does it mean for something to burn, anyway? Does there have to be fire for something to burn? Join Cheryl as she learns answers to these and more questions this week. It's never too late to learn about the world around you.

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Resources from this episode:
4 weird smells you might notice when you first turn on your heat
Combustion
Why do some things burn while others melt?
Tracing the chemistry of household dust

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Swing 39 by Latché Swing
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