How Things Work: Swimming Pools and Buoyancy 💧

How Things Work: Swimming Pools and Buoyancy 💧

Author: Sleep Tight Media | Bedtime Science Show for Kids & Starglow Media September 17, 2025 Duration: 29:30
Tonight we follow the pool’s “tiny river” to see how calm water stays clean—and why bodies float. We picture the hidden loop (skimmer → pump → filter → return jets), learn how chlorine and balanced pH keep water friendly, and then slip into the physics of floating—buoyancy, density, and displacement (with lungs as soft balloons). Grown-ups: we value your feedback. Our email and message link are in the episode notes—please send us your child’s questions and thoughts. Sleep Tight!,  Sheryl & Clark ❤️👂📖 --- ✨ Want more stories and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠sleeptightpremium.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠. --- Support Us 👉 Join ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Premium⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ for AD FREE listening and extra bedtime stories! 👉 ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Sleep Tight Premium⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ is now available in Apple Podcasts! 🎉 ⭐⭐⭐⭐ Leave a review wherever you listen to podcasts, or share our podcast with your friends. 📢 Have an interesting science topic you would like to investigate? Send us an email at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠hello@sleeptightscience.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ , and we may feature it in an upcoming show.  --- About Sleep Tight Science We’ve got bedtime down to a (Sleep Tight) Science! Sleep Tight Science is an award winning bedtime podcast that makes science accessible and enjoyable for the whole family. Snuggle in and drift off to sleep while learning about science topics submitted by listeners! Designed for curious young minds (but simple enough for grown-ups to understand), Sleep Tight Science uses big words to answer big questions that kids wonder about, like why do we feel icky sometimes and how do our legs help us move? Learn something new about the natural world while drifting off to dreamland. Have an interesting science question or a topic you’re curious about? Email us at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠hello@sleeptightscience.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, and it might just be the focus of an upcoming episode! Dedicated to enhancing the health and happiness of children, Sleep Tight Media helps families replace bedtime struggles with bedtime snuggles.  -- Advertising provided by Starglow Media. Learn more about Starglow Media ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠here

Ever wondered why we feel icky or what makes the stars twinkle? Those big, curious questions from kids are exactly where Sleep Tight Science-A Bedtime Science Show For Kids begins. This calming podcast turns bedtime into a gentle exploration of the world, answering real listener-submitted topics with clear, accessible explanations. Each episode is crafted to be engaging for young, inquisitive minds while remaining straightforward enough for any adult to follow along, making it a shared experience for the whole family. The tone is intentionally soothing, designed to help listeners wind down and drift off while learning something new. You’ll hear complex ideas broken down with care, using proper scientific terms in a way that feels exciting and understandable, not intimidating. It’s a unique blend of education and relaxation, transforming those last moments of the day into a peaceful journey through questions about nature, our bodies, and the universe. Created by Sleep Tight Media and Starglow Media, this series proves that science isn’t just for the classroom-it’s a perfect, wonder-filled companion for the quiet, cozy end of the day. So, snuggle in and let the curiosity flow as sleep approaches.
Author: Language: English Episodes: 100

Sleep Tight Science - A Bedtime Science Show For Kids
Podcast Episodes
Do you know about snow? ❄️ (Encore) [not-audio_url] [/not-audio_url]

Duration: 24:46
In this episode, we will learn about snow, what it is made of and the different colours it can be. Did you know that snow could be in different colours? We will discuss the water cycle and how important snow is for the w…
Listener questions: Cats, Numbers, and Planet Mysteries 🐾🌍 [not-audio_url] [/not-audio_url]

Duration: 26:10
We're answering some cool and interesting questions you sent us in this episode. We answer questions about cats, numbers, and planets! Discover why cats have whiskers and tails, how ancient humans counted before numbers…
Do you know about Reindeer? 🦌🎅🏻 [not-audio_url] [/not-audio_url]

Duration: 25:57
In this episode, we're learning all about reindeer! Discover how these incredible animals survive in the Arctic, their amazing migrations, the unique features of their antlers, and the science behind their warm, red nose…
Do you know how LEGO are made? 🧱🤖 [not-audio_url] [/not-audio_url]

Duration: 22:49
In this episode, we’re exploring the world of LEGO! Discover how these iconic bricks are made, the fascinating science behind their strength and precision, and how they became a global favourite. From tiny plastic pellet…
Fun Facts About Pumpkins And Turkeys 🦃🎃🥧 [not-audio_url] [/not-audio_url]

Duration: 25:19
In this episode, we will learn about the world of pumpkins, turkeys, and Thanksgiving traditions. We will learn why pumpkins float, how turkeys run and fly faster than you might think, and the history behind some of your…
Do you know about Dolphins? 🐬 [not-audio_url] [/not-audio_url]

Duration: 23:28
In this episode, we’ll explore these intelligent, playful marine mammals known for their friendliness and incredible behaviours. Learn how dolphins, part of the “toothed whale” family alongside orcas, differ from their c…
Listener Questions: From Dinosaur Power to Houses Made from Poop 🦕 [not-audio_url] [/not-audio_url]

Duration: 26:30
In this episode, we're answering your questions! We'll learn why some animals use poop to build their homes—and whether it smells terrible, explore why cars need gas and oil, the science behind rising muffins, the import…
Do you know about The Milky Way? 🌌 [not-audio_url] [/not-audio_url]

Duration: 25:19
In this episode, we'll journey through our home galaxy, the Milky Way, a vast spiral galaxy with over 100 billion stars, including our Sun. Located in the quieter Orion-Cygnus Arm, about 27,000 light-years from the cente…
Fun Facts: Creepy, Crawly, and a Little Bit Gross! 🧟🪳 [not-audio_url] [/not-audio_url]

Duration: 24:53
In this episode, we are going to learn about the animal kingdom’s strangest and grossest creatures! We’ll start with the housefly, discovering its unique habits like tasting with its feet and vomiting on its food, and mo…