Catch up TV
Series 1: 1. Hamster Wheel and Insect Hotel
Maddie meets some furry friends and creepy crawlies. She visits a pet shop and uses a special night-vision camera to find out how a hamster wheel works and how far a hamster can run in a single night. Next, Maddie visits a factory to see how an insect hotel is made from wood and bamboo and uses a slow-motion camera to show how a drill creates holes in the wood for the insects to hide in.
Source: CBeebies
Most recent episodes of Do You Know?
Do You Know?
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, ...
30-04-2025
CBeebies
Do You Know?
Series 4: 17. Car Ferry And Globe
In today’s episode, Maddie learns about land and water! Maddie visits a port to find out how cars are loaded onto a ferry so they can be carried across the water. She then ...
29-04-2025
CBeebies
Do You Know?
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 ...
28-04-2025
CBeebies
Do You Know?
Series 4: 15. Climbing Wall And Modelling Clay
Today, Maddie is learning about colourful things! She visits a climbing wall centre, where she finds out how colourful holds on the wall help us to climb up it. And we learn how ...
25-04-2025
CBeebies
Do You Know?
Series 4: 14. Neon Sign And Revolving Door
In today’s episode, Maddie is out and about! She finds out how revolving doors can let lots of people in and out of buildings at the same time. She visits a revolving door ...
24-04-2025
CBeebies
Do You Know?
Series 4: 13. Kaleidoscope And Envelope
In today’s episode, Maddie is looking inside things! We look inside a kaleidoscope to learn how it uses three mirrors called a triangular prism to make colourful patterns. ...
23-04-2025
CBeebies
Do You Know?
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 ...
22-04-2025
CBeebies
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 ...
21-04-2025
CBeebies
Do You Know?
Series 4: 10. Glass Recycling And Jam
In today’s episode, Maddie is learning all about glass! She visits a glass recycling centre to see how the glass from our homes is recycled. When the glass arrives to the ...
18-04-2025
CBeebies
Do You Know?
Series 4: 9. Road Sweeper And Paper Straw
In today’s episode, Maddie is finding out about machines that use suction! She heads to a road sweeper depot to learn how all the parts of a road sweeper work together, c ...
17-04-2025
CBeebies
Most popular episodes of Do You Know?
Do You Know?
Series 1: 23. Car Brakes And Car
Maddie goes for a drive in the car. She uses a special microscope camera to find out how car brakes work. An animation shows how the brake pedal is connected to the brake discs ...
14-03-2025
CBeebies
Do You Know?
Series 2: 11. Aeroplane And Trainers
Today, Maddie is on the move. She gets on board an aeroplane and shows us all the buttons inside the cockpit and how they work. Then she sits alongside Bridget, a pilot, in a fl ...
27-03-2025
CBeebies
Do You Know?
Series 4: 17. Car Ferry And Globe
In today’s episode, Maddie learns about land and water! Maddie visits a port to find out how cars are loaded onto a ferry so they can be carried across the water. She then ...
29-04-2025
CBeebies
Do You Know?
Series 4: 5. Drinking Water And Carrot
In this episode, Maddie visits a reservoir that collects water from our homes, natural springs and the rain. She heads to a draw-off tower, which takes water from the reservoir ...
11-04-2025
CBeebies
Do You Know?
Series 2: 22. Hand Dryer And Toilet Roll
In today's episode, Maddie is looking at things we use when we go to the toilet. She visits a factory to see how hand dryers work. She shows us how infrared light is used to swi ...
09-04-2025
CBeebies
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
Do You Know?
Series 4: 14. Neon Sign And Revolving Door
In today’s episode, Maddie is out and about! She finds out how revolving doors can let lots of people in and out of buildings at the same time. She visits a revolving door ...
24-04-2025
CBeebies
Do You Know?
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, ...
30-04-2025
CBeebies
Do You Know?
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 ...
22-04-2025
CBeebies
Do You Know?
Series 1: 22. Escalator And Wheelbarrow
Maddie is at a shopping centre. She uses special cameras to find out how an escalator works to move people from one floor to another. An animation shows the hidden cogs and chai ...
13-03-2025
CBeebies