Bonus Episode: Chemistry at Home 7 (Rebroadcast)

Here's a bonus episode dedicated to teaching a specific chemistry experiment you can do at home. This month, we see what happens when we cut up different colors of leaves, put them in alcohol, mash them up, and soak a coffee filter in them.

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References

• The Science of Leaves from KristinMoonScience

Sara Hull
Dog Day Dan
Bri .
Amanda Raymond
Ash
Vince W
Julie S.
Heather Ragusa
Autoclave
Dorien VD
Scott Beyer
Jessie Reder
J0HNTR0Y
Erica Bee
Elizabeth P
Rachel Reina
Letila
Katrina Barnum-Huckins
Suzanne Phillips
Venus Rebholz
Jacob Taber
Brian Kimball
Kristina Gotfredsen
Timothy Parker
Steven Boyles
Chris Skupien
Chelsea B
Avishai Barnoy
Hunter Reardon

Support this podcast on Patreon
Buy Podcast Merch and Apparel

Check out our website at chemforyourlife.com

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#065 Rebroadcast

It's Fall! You know why they call Fall Fall? Well because the leaves fall. But before that, the leaves change color. Why do they do that? How? Is there any sort of function to it? Do the different colors mean anything? Let's dive into this overdue, colorful topic.

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References from the Episode:

1. http://www.compoundchem.com/2014/09/11/autumnleaves/
2. https://www.acs.org/content/acs/en/pressroom/reactions/videos/2014/why-do-leaves-change-color.html
3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465813/
4. https://www.nature.com/news/2007/071029/full/news.2007.202.html
5. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC125091/
6. https://harvardforest.fas.harvard.edu/sites/default/files/leaves/2002_11_leaf_article.pdf
7. https://biology.appstate.edu/fall-colors/hidden-colors-leaves-what-are-functions-those-yellow-and-orange-pigments-we-see-fall
8. http://www.appstate.edu/~neufeldhs/publications/hugh2005.pdf

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J0HNTR0Y
Cullyn R
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Letila
Katrina Barnum-Huckins
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What makes skunk spray smell so astonishingly bad, and why can the odor come roaring back whenever a sprayed dog gets wet? Are humans unusually sensitive to skunk smell? Does tomato juice actually remove it, or have cartoons been lying to us for decades? In this spooky episode, Melissa and Jam investigate skunk spray, sulfur compounds, olfaction, odor removal, and the chemistry behind a smell that simply refuses to die.

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Timestamps

00:00 – A spooky question: Why do skunks smell so bad?
02:43 – The listener question that inspired the episode
04:33 – The chemical family hiding inside skunk spray
08:46 – Why our noses are incredibly sensitive to sulfur compounds
11:38 – How skunks weaponized a smell mammals already hate
12:43 – Why skunk odor can return when it gets wet
17:00 – Drawing out the surprising water-triggered reaction
21:07 – Jam’s teach-back: skunk chemistry explained
31:11 – Does tomato juice actually remove skunk smell?
32:55 – What chemistry suggests might work instead
34:44 – Skunk species, warning signs, and spray strategy
37:58 – Melissa’s baby-skunk rescue and other skunk encounters

References from the Episode:

Thanks to our monthly supporters
Sara Hull
Dog Day Dan
Bri .
Summer Alden
Amanda Raymond
Kyle McCray
Justine
Ash
Vince W
Julie S.
Heather Ragusa
Autoclave
Dorien VD
Scott Beyer
Jessie Reder
J0HNTR0Y
Cullyn R
Erica Bee
Elizabeth P
Rachel Reina
Letila
Katrina Barnum-Huckins
Suzanne Phillips
Venus Rebholz
Jacob Taber
Brian Kimball
Kristina Gotfredsen
Timothy Parker
Steven Boyles
Chris Skupien
Chelsea B
Avishai Barnoy
Hunter Reardon

Check out our website at chemforyourlife.com

Watch our episodes on YouTube

Find us on Instagram, Twitter, and Facebook @ChemForYourLife

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.