Little Ears Big Ideas

In this episode, Lily and Max explore how moss holds water like a tiny sponge, how wet surfaces reduce friction, and why algae and other microscopic organisms can make moss even more slippery. They also discover why moss loves damp places and how to stay safe on mossy paths, rocks and steps.

In this episode of Little Ears, Big Ideas, Lily and Max dive into the surprisingly clever science hiding inside an everyday toilet. Discover where the flushing water comes from, how gravity helps create that powerful WHOOSH, what a siphon does, why toilets have a bendy trapway, and how the tank magically knows when to stop filling.

In this episode of Little Ears, Big Ideas, Lily and Max explore how animals’ bodies are perfectly suited to the places they live. We’ll discover why legs are so useful on land, how fins and flippers help animals move through water

In this episode of Little Ears, Big Ideas, Lily and Max head beneath the Earth’s surface to discover tectonic plates, faults, seismic waves and the enormous forces that can build up underground. With a simple hands-on experiment, they explore how rocks can get stuck, pressure can build, and a sudden slip can send vibrations travelling through the Earth.

In this episode of Little Ears, Big Ideas, Lily and Max zoom out from Earth to the Solar System, the Milky Way, and far beyond to discover just how enormous space really is.

After a tiny paper cut sparks a very dramatic “emergency,” Lily and Max take a closer look at the amazing stuff flowing through our bodies. Discover the four main parts of blood: plasma, red blood cells, white blood cells, and platelets , and learn how they work together to carry oxygen, fight germs, deliver nutrients, and patch up cuts.

In this episode, Lily and Max follow the journey from tiny wood fibres and watery pulp to giant drying machines, soft layers and neatly folded tissues in a box.

In this episode, Lily and Max discover that chameleons do not use magic, paint, or tiny artists. Instead, their skin has special colour cells and tiny crystal-like structures that reflect light in different ways. They learn that chameleons change colour to communicate, stay warm or cool, and sometimes help with hiding.

In this episode, Lily and Max explore the difference between imaginary creatures and real animals, discover how dragons are portrayed in cultures around the world, and investigate what a body would actually need to produce fire. Along the way, they meet some amazing real animals with dragon-like abilities and learn how fossils help scientists understand what dinosaurs could and could not do. It is a fiery adventure where science meets mythology and imagination!

In this episode of Little Ears, Big Ideas, Lily and Max explore what happens after medicine enters the body. They discover how different medicines can reduce pain, lower fever, fight certain bacteria, calm inflammation and help the body do its healing work.

How does the internet send a Pokémon video from a computer far away all the way to your tablet? In this episode, Lily and Max follow the journey through Wi-Fi, routers, servers, cables, packets and even underwater fibre-optic lines. It is a fast, funny adventure through the invisible network connecting our world.

In this sweet and curious episode of Little Ears, Big Ideas, we find out why our brains get so excited about sugary foods. From taste buds and energy signals to “just one more bite” feelings, Lily and Max explore why sweet things can feel so hard to resist and how we can enjoy treats while still looking after our bodies and teeth.

Why did the Big Bang happen and was it really a giant explosion? In this mind-stretching episode, Lily and Max explore one of science’s biggest mysteries in a kid-friendly way. They discover how the universe began expanding, why scientists think space was once extremely hot and dense, what clues are left behind from the early universe, and why some questions are still being investigated today. It is a cosmic adventure full of galaxies, mystery boxes, star confetti, and very big “why?” questions.

In this episode of Little Ears, Big Ideas, Lily and Max explore how soap cleans hands. They discover why water alone is not always enough, how tiny soap molecules grab greasy dirt, and why rubbing, rinsing, and bubbles help wash germs away. It is a bubbly, squeaky, science-filled handwashing adventure for curious kids.

In this funny Big Ears Edition, Lily and Max investigate why kids can stand in winter wearing shorts and a T-shirt while insisting they are “not cold.” From busy bodies and brave legs to jacket battles and emergency hoodies, this episode helps grownups understand what might really be going on, while giving kids a giggle too.

Why can we see lightning flashing across the sky, but it doesn’t always hit our backyard? In this episode, Lily and Max explore what lightning really is, why it can look close when it is far away, why thunder comes after the flash, and how lightning finds its path through the air. With giant earmuffs, cloud batteries, zigzag zaps, and simple storm safety tips, this episode helps curious kids understand lightning in a fun, reassuring way.

In this episode, Arthur asks why people in different countries speak different languages. Lily and Max take a fun world tour through mountains, accents, writing systems, travelling words, baby language detectives, and why words can carry family, culture, history and home. Along the way, they discover that languages are not just different sounds, they are also people’s stories.

In this colourful episode, Lily and Max explore Zelda’s brilliant question: why can’t we have rainbow skin? They discover what gives human skin its colour, how rainbows are made from light, and the surprising hidden patterns called Blaschko’s lines that most people can’t see.

In this episode of Little Ears, Big Ideas, Lily and Max explore why some people have straight hair while others have curls, waves, or coils. With help from Alex’s question, they discover tiny hair follicles, genes, keratin, frizz, and why every hair type is wonderfully different.

In this episode of Little Ears, Big Ideas, Lily and Max investigate the wobbly mystery of baby teeth! Why do teeth fall out, what is hiding underneath, and why do grown-up teeth take their place? With silly tooth jokes, gentle science, and a very proud gap smile, this episode helps kids understand one of the biggest little milestones of growing up.

In this episode, Lily and Max explore why spiders make webs . They discover that spider webs are not just spooky decorations. They are clever tools for catching food, building shelters, protecting eggs, and even making safety lines. This episode turns spider science into a fun, friendly adventure for curious kids.

In this episode of Little Ears, Big Ideas, Lily and Max explore big question: why do we need to sleep? From brain tidying and memory saving to growing, repairing, dreaming, and avoiding full grumble-monster mode, this cozy bedtime-science episode helps kids understand that sleep is not doing nothing.

In this World Cup follow-up episode, Lily and Max tackle one of football’s most confusing rules: offside. With a playful referee whistle, a simple pitch example, and plenty of Max-style football drama, they explain why a goal can be cancelled, what the second-last defender means, and why timing matters so much.

In this episode, Lily and Max explore how animals communicate, how human language works, and why dogs use barks, tails, sounds, and body language to share their messages. A fun, woofy episode about words, animals, and big ideas.

In this special episode, Lily and Max explore why the World Cup makes the whole world cheer! Get ready for football, facts, feelings, and a celebration of how one game can bring people together around the world.

In this episode, Lily and Max explore Arthur’s wonderfully slimy question: what is snot made of? From water and sticky mucins to dust, pollen, and tiny germ-fighting helpers, they discover why our noses make mucus, how it protects our bodies, and why snot sometimes gets runny or changes colour when we’re sick. A funny, slightly gross, and very curious science adventure for little listeners!

In this episode, Lily and Max investigate how electronic toys move, beep, flash, and zoom! From batteries and circuits to motors, gears, speakers, and lights, they discover that a walking robot or roaring dinosaur is not magic, it’s science in a toy costume.

In this episode, Lily and Max find out why the Moon looks like it changes shape, and discover it’s always round, just showing us different sunny parts.

In this episode, Lily and Max dive into why the sea is full of creatures, and why some of them sting, in a fun underwater adventure about habitats, jellyfish, and respecting ocean animals.

In this episode, Lily and Max explore what money really is, why people use it instead of swapping things, and how coins, paper notes, and trust help make buying and selling work.Audio re-uploaded for technical reasons on 31st May 2026.

In this episode, Lily and Max discover why wind is invisible, how moving air can still push, whoosh, and mess up your hair, and how we can spot the wind by watching what it does.Audio re-uploaded for technical reasons on 31st May 2026.

In this episode, Lily and Max explore why we get hiccups, what happens inside our bodies when they pop out, and why those funny little “hic!” sounds can be so hard to stop.Audio re-uploaded for technical reasons on 31st May 2026.

In this episode, Lily and Max find out whether stars are hot or cold, why stars shine, and how their colours can give us clues about their temperature.Audio re-uploaded for technical reasons on 31st May 2026.

In this episode, Lily and Max discover how tiny bits of salt travel from rocks and rivers into the ocean, and why the sea ends up salty instead of sweet.Audio re-uploaded for technical reasons on 31st May 2026.

In this episode, Lily and Max explore why planes do not need to flap like birds, and how clever wing shapes help them lift, glide, and soar through the sky.Audio re-uploaded for technical reasons on 31st May 2026.

Little Ears, Big Ideas is a short, fun sciencepodcast for curious kids aged 5–9 and the grown-ups who love listening withthem.Each bite-sized episode explores one big question about theworld.With playful conversations and simple explanations, LittleEars, Big Ideas helps children discover science in a friendly, imaginative,and easy-to-understand way.Perfect for car rides, after-school listening, bedtimecuriosity, or any moment when a child asks, “But why?”New episodes weekly.