Why Though? with Dr. Matt Agnew – Details, episodes & analysis

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Why Though? with Dr. Matt Agnew

MIK and Dr Matt Agnew

Kids & Family

Science

Kids & Family

Frequency: 1 episode/9d. Total Eps: 8

Hosted by scientist Dr Matt Agnew, Why Though? is Australia's new science podcast for curious kids aged 8–12.

Every episode starts with one question kids actually ask... and ends with a science adventure. Real answers, weird facts, and the kind of stuff that makes you look at the world differently on the walk home from school.

Perfect for car trips, classrooms, and kids who can't stop asking why.

Why Though? The show for little scientists who love asking big questions. Follow or subscribe now so you don't miss Episode One.

Hosted on Acast. See acast.com/privacy for more information.

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Score global : 63%

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Why Are Farts Smelly?

Season 1 · Episode 7

Saturday, June 13, 2026 • Duration 04:04

Here's something nobody tells you. Most of a fart has absolutely no smell. So what's actually making everyone pinch their nose?

Dr Matt Agnew investigates the science of farts. How do smells actually work? What is a fart made of? And why do some foods make the whole situation so much worse?

What you'll learn:

Smells are tiny invisible particles floating in the air that your olfactory receptors grab and send to your brain
A fart is gas made by bacteria in your intestines while they break down food
Most fart gas has absolutely no smell... nitrogen, hydrogen, carbon dioxide, oxygen and even methane are all odourless
The real culprit is hydrogen sulfide... just 1% of a fart but enough to clear a room
Foods like beans, eggs, broccoli, brussels sprouts, garlic, onion and cheese all produce more hydrogen sulfide
Most people fart between 10 and 20 times a day... farts are natural, healthy, and a sign your body is doing its job
Astronauts on the International Space Station have to think carefully about farts because the gas can be trapped and even flammable

Key Science Ideas:

Olfactory receptors: The tiny parts inside your nose that detect smell and send signals to your brain
Bacteria: Tiny living things in your intestines that help break down food... and make gas while doing it
Hydrogen sulfide: The gas responsible for that rotten egg smell... and basically every bad fart ever
Intestines: The long tube where food gets broken down after leaving your stomach
Microbiome: The community of bacteria living inside your body doing useful work every day

Fun Experiment: The Food Fart Tracker Pick two days this week. On day one eat a meal with plenty of broccoli, beans or eggs. On day two eat a meal without any of those. Pay attention to what happens a few hours after each meal. That difference is hydrogen sulfide in action... your gut bacteria working harder on certain foods and producing more of that one very specific gas. Science is everywhere, even when you'd rather it wasn't.

Why Though? The show for little scientists who love asking big questions. Follow or subscribe so you never miss an episode.

Follow Dr Matt Agnew:

Instagram: instagram.com/drmattagnew

TikTok: tiktok.com/@drmattagnew

YouTube: youtube.com/@whythoughpod

Website: drmattagnew.com

Find Why Though? podcast across the internet and share with your friends!

Instagram: instagram.com/whythoughpod

TikTok: tiktok.com/@whythoughpod

Facebook: facebook.com/whythoughpod

Hosted on Acast. See acast.com/privacy for more information.

Why Though? with Dr. Matt Agnew – Details, episodes & analysis

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Why Though? with Dr. Matt Agnew – Details, episodes & analysis

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