Catch up TV
Series 3: 12. Bowling Alley and Ribbon
Maddie heads to a bowling alley to find out how it works. She takes her special cameras and looks behind the lane to see where the pins end up and how they get put back in the right place. We also see underneath the bowling alley to find out how the ball rolls back ready for the player to take another turn. Next Maddie heads to a ribbon factory where they make lots of different types of ribbon from recycled plastic. She uses her special microscope camera to see how the tiny weft and warp yards are woven together to make a tartan ribbon.
Source: CBeebies
Most recent episodes of Do You Know?
Do You Know?
Series 1: 9. Hot Water And Toothpaste
Maddie is preparing for bath time. She uses a special thermal-imaging camera to find out how the hot water system in a house works and then visits a reservoir to see where the w ...
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Series 1: 8. Blood Pressure Monitor And Cast
Maddie visits a hospital. She uses a special light to see the blood vessels under her skin and finds out how a blood pressure monitor works to check that blood is flowing freely ...
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Series 1: 7. Boat Propeller And Hot-air Balloon
Maddie is out and about exploring different ways to travel. She uses a special underwater camera to see a boat propeller in action and an animation reveals how the propeller pus ...
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Series 1: 6. Cat Flap And Woolly Hat
Maddie meets some furry friends. She uses special cameras to find out how a digital cat flap works and how a tiny microchip unlocks the cat flap so the cats can go in and out of ...
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Series 1: 5. Bike Chain And Tennis Ball
Maddie is outside being active. She uses a special camera to find out how the chain on a bicycle works to turn the wheels and how the front wheel and handlebars are used to stee ...
09-07-2025
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Series 1: 4. Bin Lorry And Newspaper
Maddie does the recycling. She uses a special camera to find out how a bin lorry works to lift a bin and tip the rubbish into the hopper. An animation reveals how a moving wall ...
08-07-2025
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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 ...
07-07-2025
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Series 2: 21. Fish Tank And Bath
In today's episode, Maddie finds out about things that use water. She visits an aquatic centre to show us how a fish tank works, using a special underwater camera to explain how ...
04-07-2025
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Series 2: 20. Kite And Wind Turbine
In today's episode, Maddie is outdoors finding out about things that use the wind. She finds out how a kite works when it flies high in the sky, shows us how to measure the wind ...
03-07-2025
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Series 2: 19. Television And Carpet
In today's episode, Maddie is relaxing at home, playing games and watching television. She shows us how a television screen works using millions of tiny squares called pixels. U ...
02-07-2025
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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
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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 ...
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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
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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 ...
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Series 1: 25. Cake And Soft Play
Maddie is getting ready for a party. She uses a special camera and animation to find out how cake ingredients work together to make cake sponges rise in the oven. Next, Maddie v ...
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Series 2: 13. Hairclippers And Ballet Shoes
Today, Maddie is dressing up. She visits a barber to find out how clippers work to cut hair. Using a special microscope camera, Maddie shows us how the blades work, and a slow-m ...
24-06-2025
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Series 1: 21. Magnets And Teddy Bears
Maddie is looking at toys. She uses a special slow-motion camera to find out how the magnets on a train set work. An animation shows how the north and south poles on magnets wor ...
30-05-2025
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Series 4: 4. Hula Hoop And Tent
Maddie is playing outdoors. She finds out how we move our bodies to keep a hula hoop up in the air and learns how a hula hoop uses something called centripetal force to keep it ...
10-04-2025
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Series 2: 19. Television And Carpet
In today's episode, Maddie is relaxing at home, playing games and watching television. She shows us how a television screen works using millions of tiny squares called pixels. U ...
02-07-2025
CBeebies