Reactions

What's That After-Rain Smell Made Of?

09/10/2018 | 3m 58s | Video has closed captioning.

There’s a sweet smell in the air after it rains, whether it’s a spring shower or a summer storm. This week on Reactions, we explain the chemistry of petrichor, the smell of rain.

Aired: 09/10/18

Rating: NR

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Problems Playing Video? | Closed Captioning