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Imagine This

Imagine This is a science podcast for the young and curious. Have you ever wondered how bees make honey? Or how do fish breathe underwater? Or, very importantly, where your poo goes when you flush it down the toilet? Imagine This is a series of puzzling science questions from inquisitive young minds. Our host, Dr Niraj Lal, chats to kids and Australia's leading academics, taking you on imaginative adventures to learn about the world around us and find the answers together. This podcast is suited to kids aged 4 and up, though all members of the family are sure to learn something!

Popular episodes

All episodes

The best episodes ranked using user listens.

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Why don’t cats wear shoes?


8 Apr 2018

Rank #1

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Why are there waves?

Pack your bucket and spade, we’re taking a trip to the beach! Evie has noticed that there are lots of waves at the beach, and she wants to know what makes all those waves happen. Join our host Bri and wave expert Mark Hemer as we investigate what makes those waves crash onto our shore.


28 May 2019

Rank #2

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Is there life in other galaxies?

Here on Imagine This, we get lots of questions about SPACE. In this episode, our good friend Professor Jonti Horner, from the University of Southern Queensland, is back to help us answer a big mystery... is there life in other galaxies? We go looking for Alien life in other parts of the Universe to see who or what, is out there.


6 Nov 2018

Rank #3

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How was the Earth made?

Everything we see today, all the animals and trees and houses, are all part of our planet Earth. But where do you think the Earth came from? In this episode, physicist Dr Niraj Lal tells us a story that started a long, long, long time ago.


21 May 2019

Rank #4

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Does space go on forever?

Space is so big that it's big enough to contain the Earth, all the other planets, the Sun and all the stars we see at night. Conrad has always wondered if space goes on forever.


22 May 2018

Rank #5

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Why do we need food?

Why do we have to eat vegetables and fruits? How come we can’t just have ice-cream and lollies for every meal? Every time we eat, our food goes on an amazing journey through our body. Dr Amanda Devine from Edith Cowan University chats with us about what happens when we eat and why we need food to survive.


16 Oct 2018

Rank #6

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What are spiderwebs made from?

Did you know that spiders have a secret superpower? They can spin their own homes in the form of strong and sticky spider webs. But how do they do it? Dr Andrew Walker from the University of Queensland, is our expert on creepy crawlies, and he swings in to tell us why spiderwebs are so strong.


23 Oct 2018

Rank #7

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Do animals sleep like people?

If you sleep in a cozy bed, with a soft blanket and your favourite toy, how do you think other animals sleep? Do they have beds like us? This week 5-year-old Lucinda wants to find out more about the sleeping habits of snails, birds and whales, so we chat to sleep scientist Dr.John Lesku from La Trobe University to get the low down on how other animals sleep.


29 May 2018

Rank #8

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Why do volcanoes erupt?

Volcanoes are one of the most powerful forces on Earth. This week we go right up close with volcanologist Heather Handley and peek inside a volcano to see how they work. Turns out here’s a lot going on underground!


23 Apr 2019

Rank #9

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Why do birds sing?

When birds sing, what do you think they’re saying? In this episode we head to the park with Simon Griffith to listen to the birds. Put your listening ears on and get ready to hear some amazing singers.


16 Apr 2019

Rank #10

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Why are mosquito bites itchy?

If you’ve ever been bitten by a mosquito, you might know how hard it is not to itch it! In this episode, our question comes from James who is traveling around Australia with his family. They get bitten by mozzies all the time and he wants to know why these bites are so itchy. Dr Emily Flies from the University of Tasmania joins us to investigate those irritating little bites.


10 Sep 2018

Rank #11

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Where do dreams come from?

In this episode Winifred wants to know where our dreams come from, so psychologist Dr Shane Rogers and host Bri go on an adventure inside the mind to explore the incredible world of dreams.


9 Apr 2019

Rank #12

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How does our heart beat?

We all have a heart beating in our chest. Sometimes our hearts beat fast, and sometimes they beat slow, but how do they work? In this episode, Louis wants to know what makes our hearts beat. Join our host Bri and Dr Shane Nanayakkara as they listen close to find out what our hearts are doing.


14 May 2019

Rank #13

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Why do leaves fall off trees?

Have you ever noticed that some trees change in the Autumn? Their leaves can turn from green to red and yellow, and fall to the ground. In this episode Emma wants to know why trees lose their leaves, so tree scientist Matilda Brown helps us to solve the mystery of the falling leaves.


7 May 2019

Rank #14

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Why do we have bones?

Underneath your skin and muscle, you might be able to feel your bones. But why are they there?  Join us as we find out more about the human skeleton and what it does. Dr Emma Duncan from the University of Queensland explains what’s going on under our skin.


31 Oct 2018

Rank #15