Catch up TV
Series 4: 11. Snail and Tractor
Today, Maddie learns about how different things move! She is heading to a snail garden to see how a snail uses mucus and the muscles in its body, called its foot, to move. Maddie uses her special lens camera to show us how the snail contracts and relaxes the muscles in its foot – it looks like a rippling wave!\n\nAfterwards, Maddie heads to a tractor factory to see how the front and back axles of a tractor are connected to the engine and something called the transmission to make the chassis. Maddie uses her special cameras to see the chassis carried around the factory so more parts can be added – it’s like a rollercoaster for tractor parts! She also learns how clever robotic arms spray the chassis with paint.
Source: CBeebies
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Series 1: 2. Fire Engine Hose And Reflective Strips
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Series 4: 20. Speaker And Colour
Today, Maddie is using her senses to see and hear! She visits a speaker factory to understand what happens when we listen to music from a speaker. With the help of her special s ...
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Series 4: 17. Car Ferry And Globe
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Series 4: 16. Forklift And Dried Fruit
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Series 4: 15. Climbing Wall And Modelling Clay
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15-02-2025
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Series 4: 14. Neon Sign And Revolving Door
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Series 4: 12. Window Cleaning Cradle And Shadow
Maddie heads to a tall building to find out how a window cleaning cradle works. She discovers how really strong metal cables lift and lower the cradle, which uses tracks to move ...
12-02-2025
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Most popular episodes of Do You Know?
Do You Know?
Series 4: 11. Snail And Tractor
Today, Maddie learns about how different things move! She is heading to a snail garden to see how a snail uses mucus and the muscles in its body, called its foot, to move. Maddi ...
11-02-2025
CBeebies
Do You Know?
Series 3: 1. Skyscraper And Flying Bird
Maddie finds out how really tall buildings are made out of steel and concrete. She visits a skyscraper construction site to explain how the concrete columns that are buried deep ...
06-11-2023
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Series 1: 3. Fizzy Water And Yoghurt
Maddie looks at food and drink. She uses a special slow-motion camera to find out how bubbles get inside a bottle of fizzy water. Animation shows how gas is used to create the b ...
24-10-2018
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Series 2: 1. Shipping Container And Bubble Packaging
In today's episode Maddie is on the move. She finds out how things that we use every day are brought to us on big ships and moved around the country in shipping containers on tr ...
09-05-2022
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Series 4: 16. Forklift And Dried Fruit
In today’s episode, Maddie visits a forklift warehouse. She discovers how a forklift truck uses something called counterbalance to lift things really high without tipping ...
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Series 1: 16. Lock & Key And Glass
Maddie explores the house. She uses a special camera and animation to see how a key works inside a lock and shows how the hidden barrel and pins inside the lock work, to allow t ...
20-04-2023
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Series 4: 18. Airport Baggage And Rucksack
Today, Maddie is learning all about baggage! She visits an airport to see how baggage goes from the check-in desk and onto an aeroplane using something called a destination tag, ...
18-02-2025
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Series 3: 18. Waves And Ice Cream
Today, Maddie is having fun by the beach! She finds out how waves are formed far out to sea when the wind blows and how some of them are made by the tides. She visits a surfing ...
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Do You Know?
Series 1: 2. Fire Engine Hose And Reflective Strips
Maddie looks at the emergency services. She uses a special camera to find out how the hose on a fire engine works and how the pump inside the fire engine creates pressure and se ...
21-02-2025
CBeebies