To celebrate Science Week we're unearthing a special episode of Gardening Australia Junior! 

The theme of this year's Science Week is 'Seeds of Science: Nurturing knowledge for all'. They're not just talking about planting seeds in the ground. It’s about planting seeds of curiosity too! Every great scientific discovery starts with wondering about the world around us... Why is the sky blue? Why do apples fall from trees? What’s hiding underneath our feet?

Join Costa, Nij and the Gardening Australia Junior crew in learning all about the secret lives of worms. 

We're having so much fun listening back through your all-time favourite Imagine This episodes! This one sure was illuminating! 

The Sun is hot and bright, it helps plants grow and keeps us warm. But did you know, the Sun is also a star? How come there are so many tiny, twinkling stars at night and just one sun lighting up the world in the day time? Let's blast off into outer space with Professor Lisa Harvey-Smith for a closer look at our closest star.

If you have a request or want to ask a new question... Drop us a line at [email protected]

Keep questioning!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

We're digging through the archives and picking all your old faves. This one was no garden-variety adventure...

If plants come from seeds but seeds come from plants then how do you get a seed to start off with? Nij and the kids meet ecologist Professor Angela Moles for a bushwalk to find some answers... 

If you have a request or want to ask a new question... Drop us a line at [email protected]

Keep questioning!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

We're looking back at some of your all-time favourite Imagine This episodes. Nij is the guest scientist and the kids take the lead in this colourful adventure to learn all about the science of rainbows...

We can see them after a sun shower... or the spray of the sprinkler... we can even sing them! But why can't we ever catch them? Nij shares the ingredients to make a rainbow in this special episode of Imagine This...

If you have a request or want to ask a new question... Drop us a line at [email protected]

Keep questioning!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

The Imaginarium has been inundated with requests for some of your favourite episodes! Let's dive in...

Up here on land, we breathe air into our lungs but how do fish breathe underwater? Is there air in the sea? Do fish have lungs like us? Let’s head to the beach with Dr Nij to meet marine biologist Tooni Mahto and find out how fish and other sea creatures live underwater.   

If you have a request or want to ask a new question... Drop us a line at [email protected]

Keep questioning!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

We've been spring cleaning the Imaginarium and have come across some old favourites! This golden oldie's a gas... literally!

Today we're talking about something that all of us do. They can be loud or soft, sometimes smelly and almost always funny. We're talking about fluffs, toots, air biscuits - yes, farts! - and why they come out of our bums. Join Professor Kourosh Kalantar-Zadeh as we shrink to fit inside his gas-smelling capsule to follow the journey of gas in our bodies.

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

Evie wants to know, "How is soil made?" 

Soil is everywhere but where does it come from? And why does it get treated like dirt?

Nij and the kids team up with Dr Samantha Grover from the Soil-Atmosphere-Anthroposphere Lab at RMIT University. Together they'll journey deep underground to learn all about the connections between soil, the environment, and people! 

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

Jamie wants to know, "What makes food spicy?" and Jacob asks, "Where does spice come from, how is it made and why does milk help?"

Let's follow the flavours that tickle our tastebuds with sensory scientist Professor Heather Smyth. Nij and the kids will learn all about how taste works and why spiciness packs such a punch!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

Frankie and Timothy would like to know, "How do cars work?" 

Levi wants to know "How do different types of cars get power?"

Arija is curious "How do engines makes cars move?

Connor and Rory want to know, "How does a hybrid car work?"

And Sam wants to know, "How do vehicles go?"

Let's catch a ride with Professor Shawn Kook from the UNSW Engine Research Lab to learn about different types of engines, how they make wheels spin and cars move!

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

Today's question was sent in by a LOT of you! Lizzie, Reuben, Archie, Mack and Ruth would like to know 'How do babies grow in a mummy's tummy?', Luana wants to know "Why do babies have blood on them when they're born?" and Grayson and Mackenzie want to know, 'How are babies really made?"

Follow Nij and the kids along with Professor Tu'uhevaha Kaitu'u-Lino as we imagine ourselves inside a uterus to see how babies grow inside the body...

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.

We often think of yawning as something that happens when we're tired but the answer is much more mysterious. Nij and the kids meet Dr Kathleen Maddison at the Centre for Sleep Science for an adventure that starts all the way back in caveman times! 

For more great kids podcasts, download the free ABC listen app (Australia). There you’ll find more kids news podcasts, educational children’s stories and storytelling, podcasts from your favourite characters like Bluey and Hey Duggee and plenty more of the best kids podcasts like Imagine This, Dino Dome and News Time. For all ages from 0–4-year-olds, 5–8-year-olds, 8–10-year-olds, tweens and teens. And you can watch our kids shows on ABC iview and on the ABC Kids and ABC Big Kids channels of YouTube kids.