Catch up TV

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Do You Know?

Series in which Maddie Moate discovers how things work.

Do You Know? Episodes

Series 4: 5. Drinking Water And Carrot

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 ...

26-07-2024

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Series 4: 4. Hula Hoop And Tent

Do You Know? - 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 ...

25-07-2024

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Series 4: 3. Electric Car And Wind

Do You Know? - Series 4: 3. Electric Car And Wind

Maddie visits an electric car factory to find out how an electric car works. She learns that an electric car uses batteries and electricity to make the energy it needs to move. ...

24-07-2024

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Series 4: 2. Bird's Nest And Helmet

Do You Know? - Series 4: 2. Bird's Nest And Helmet

In this episode, Maddie learns all about strong structures. She goes to a nature reserve to find out how a bird makes its nest using twigs, moss, leaves and dried grass. She als ...

23-07-2024

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Series 4: 1. Starlight And Stop-frame Animation

Do You Know? - Series 4: 1. Starlight And Stop-frame Animation

In this episode, it’s night-time! Maddie visits a planetarium to learn how stars work. She discovers that stars are made in space by dust and gas, and when they press toge ...

22-07-2024

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Series 4: 20. Speaker And Colour

Do You Know? - 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 ...

19-07-2024

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Series 4: 19. Lamp And Playhouse

Do You Know? - Series 4: 19. Lamp And Playhouse

Today, Maddie finds out about things you might have in your home! She visits a lamp workshop to discover how a lamp lets us see in the dark. She learns that inside a light switc ...

18-07-2024

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Series 4: 18. Airport Baggage And Rucksack

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, ...

17-07-2024

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Series 4: 17. Car Ferry And Globe

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 ...

16-07-2024

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Series 4: 16. Forklift And Dried Fruit

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 ...

15-07-2024

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Series 4: 15. Climbing Wall And Modelling Clay

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 ...

12-07-2024

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Series 4: 14. Neon Sign And Revolving Door

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 ...

11-07-2024

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Series 4: 13. Kaleidoscope And Envelope

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. ...

10-07-2024

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Series 4: 12. Window Cleaning Cradle And Shadow

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 ...

09-07-2024

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Series 4: 11. Snail And Tractor

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 ...

08-07-2024

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Series 4: 10. Glass Recycling And Jam

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 ...

05-07-2024

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Series 4: 9. Road Sweeper And Paper Straw

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 ...

04-07-2024

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Series 4: 8. Floating And Sand

Do You Know? - Series 4: 8. Floating And Sand

Today, Maddie’s at sea! First she visits a boating lake, using her special underwater cameras to find out how the hull of a boat is shaped to help it float on water. She l ...

03-07-2024

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Series 4: 7. Bike Bell And Line Markings

Do You Know? - Series 4: 7. Bike Bell And Line Markings

Today, Maddie is on her bike! She visits a bike workshop to find out why different bike bells make different ringing sounds. Maddie uses her special slow-motion camera to see in ...

02-07-2024

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Series 4: 6. Radio Telescope And Maze

Do You Know? - Series 4: 6. Radio Telescope And Maze

Today, Maddie is finding things! First, she visits an observatory to see how a really big radio telescope uses powerful computers to collect radio waves from space and turn them ...

01-07-2024

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Maddie's Do You Know: At Christmas: 1. Reindeer And Christmas Decorations

Do You Know? - Maddie's Do You Know: At Christmas: 1. Reindeer And Christmas Decorations

Maddie goes on a Christmas adventure as she meets Santa's favourite helper, the reindeer, and discovers how Christmas decorations are made. She learns how reindeer keep warm in ...

25-12-2023

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Series 3: 25. Washing Machine And Jeans

Do You Know? - Series 3: 25. Washing Machine And Jeans

In this episode, it is washing day! First, Maddie visits a washing machine repair centre to find out how washing machines work. She discovers how water gets into the drum throug ...

11-12-2023

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Series 3: 24. Sleep And Sofa

Do You Know? - Series 3: 24. Sleep And Sofa

In this episode, Maddie is relaxing at home. She finds out what happens to our bodies when we go to sleep at night. Using a special sleep monitor, Maddie shows us that our bodie ...

08-12-2023

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Series 3: 23. Camera And Hair Brush

Do You Know? - Series 3: 23. Camera And Hair Brush

In this episode, Maddie finds out what happens when we have our picture taken. She shows us how the parts of a camera work to make the image bright and clear. With the help of a ...

07-12-2023

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Series 3: 22. Spider Web And Watering Can

Do You Know? - Series 3: 22. Spider Web And Watering Can

In this episode, Maddie is in the garden. She finds out how spiders make webs using silk, meets a spider expert and learns that different spiders make different types of webs. U ...

06-12-2023

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Series 3: 21. Tram And Map

Do You Know? - Series 3: 21. Tram And Map

Maddie has a day out, starting by travelling on a tram. She finds out how it moves using electricity from wire cables above. Maddie jumps on board, and using her special cameras ...

05-12-2023

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Series 3: 20. X-ray And Sock

Do You Know? - Series 3: 20. X-ray And Sock

In today’s episode, Maddie explores how our body works. She visits a children’s hospital to find out what happens when we have an X-ray. She meets James, who has bro ...

04-12-2023

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Series 3: 19. Library And Book

Do You Know? - Series 3: 19. Library And Book

In this episode, Maddie find out about books! First, she visits a library to learn how all the different types of books are stored in different sections. Then she uses her speci ...

30-11-2023

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Series 3: 18. Waves And Ice Cream

Do You Know? - 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 ...

29-11-2023

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Series 3: 17. Lighthouse And Bathbomb

Do You Know? - Series 3: 17. Lighthouse And Bathbomb

Maddie is at the coast! She visits a red and white striped lighthouse and meets the lighthouse keeper right at the top. She goes inside to where the bulb is kept and finds out h ...

28-11-2023

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Series 3: 16. Metal Recycling Centre And Road Sign

Do You Know? - Series 3: 16. Metal Recycling Centre And Road Sign

Today Maddie is learning about metal, and how it can be recycled and used again. Maddie visits a recycling centre where they recycle metal from old cars. She uses her special ca ...

27-11-2023

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Series 3: 15. Clouds & Rain And Radiator

Do You Know? - Series 3: 15. Clouds & Rain And Radiator

In today’s episode, Maddie is finding out about the weather. She discovers why we have clouds and rain and how the water cycle works. We learn there are lots of different ...

24-11-2023

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Series 3: 14. Digestion And Meringue

Do You Know? - Series 3: 14. Digestion And Meringue

Maddie learns what happens to food in our bodies when we eat it and why it’s important to eat a variety of different foods from different food groups. We find out which fo ...

23-11-2023

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Series 3: 13. Beehive And Mug

Do You Know? - Series 3: 13. Beehive And Mug

Maddie visits beehives on the roof of a building in the city. She finds out how honey bees make honey in the hive. Maddie puts on a special beekeeping suit before the beekeeper ...

22-11-2023

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Series 3: 12. Bowling Alley And Ribbon

Do You Know? - 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 r ...

21-11-2023

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Series 3: 11. Cereal And Potato Harvester

Do You Know? - Series 3: 11. Cereal And Potato Harvester

Maddie visits a farm to show us how a potato harvester works - picking out and sorting the potatoes growing in the ground. She uses her special cameras to see how the machine pu ...

20-11-2023

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Series 3: 10. Wind-up Toy And Cricket Bat

Do You Know? - Series 3: 10. Wind-up Toy And Cricket Bat

In today’s episode it’s playtime! Maddie is finding out about wind-up toys and how they move along. We see inside a wind-up truck and Maddie uses her special cameras ...

17-11-2023

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Series 3: 9. Hearing Aid And Whistle

Do You Know? - Series 3: 9. Hearing Aid And Whistle

In today’s episode Maddie is listening for sounds. First, she discovers how wearing a hearing aid can help us hear more clearly. She meets 7 year old Zara who uses a heari ...

16-11-2023

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Series 3: 8. Digger And Wellies

Do You Know? - Series 3: 8. Digger And Wellies

Maddie is at a building site and finds out how tracks work to help a digger move up and down mounds of earth. Maddie wears some special shoe attachments to show us how the digge ...

15-11-2023

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Series 3: 7. Butterfly And Wallpaper

Do You Know? - Series 3: 7. Butterfly And Wallpaper

Maddie is finding out about repeating patterns. She visits a butterfly sanctuary to learn how the life cycle of a butterfly works. Maddie uses her special microscope camera to s ...

14-11-2023

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Series 3: 6. Bridges And Playground Flooring

Do You Know? - Series 3: 6. Bridges And Playground Flooring

In today’s episode Maddie is going high and low! She takes her special 360 camera to the top of the longest suspension bridge in the UK to find out how it works. Maddie di ...

13-11-2023

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Series 3: 5. Singing And Trombone

Do You Know? - Series 3: 5. Singing And Trombone

Maddie visits a singing group and the children help us find out how we use our mouths, vocal chords and lungs to make different sounds when we sing and speak. Maddie uses a spec ...

10-11-2023

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Series 3: 4. Day And Night And Solar Panel

Do You Know? - Series 3: 4. Day And Night And Solar Panel

Maddie explains how the Sun doesn’t move when we go from day to night, but how it’s the Earth turning on its axis that makes the sun appear in the morning and go awa ...

09-11-2023

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Series 3: 3. Car Engine And Car Transporter

Do You Know? - Series 3: 3. Car Engine And Car Transporter

In today's episode Maddie finds out about cars. She heads to a car engine factory and with her special cameras finds out how blocks of aluminium metal are melted and made into a ...

08-11-2023

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Series 3: 2. Plant And Compost

Do You Know? - Series 3: 2. Plant And Compost

Maddie is finding out about the life cycle of plants! She visits a gigantic tomato growing farm and uses her special time-lapse camera to discover how a plant germinates from a ...

07-11-2023

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Series 3: 1. Skyscraper And Flying Bird

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: 25. Cake And Soft Play

Do You Know? - 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 ...

03-05-2023

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Series 1: 24. Zips And Screen Printing

Do You Know? - Series 1: 24. Zips And Screen Printing

Maddie looks at clothes. She uses a special microscope camera to look at the zip on her hoodie. An animation shows how the slider works to pull the two rows of teeth together to ...

02-05-2023

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Series 1: 23. Car Brakes And Car

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 ...

01-05-2023

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Series 1: 22. Escalator And Wheelbarrow

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 ...

28-04-2023

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Series 1: 21. Magnets And Teddy Bears

Do You Know? - 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 ...

27-04-2023

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Series 1: 20. Eggs And Bread

Do You Know? - Series 1: 20. Eggs And Bread

Maddie is making breakfast in the kitchen. She visits a farm to see where eggs come from and uses a special thermal imaging camera to show why eggs change colour when they're co ...

26-04-2023

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Series 1: 19. Dishwasher And Table

Do You Know? - Series 1: 19. Dishwasher And Table

Maddie is in the kitchen. She uses a special waterproof camera to see how the dishwasher works to clean dirty dishes. An animation shows what happens inside once the door is clo ...

25-04-2023

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Series 1: 18. Bus Ramp And Roads

Do You Know? - Series 1: 18. Bus Ramp And Roads

Maddie is out and about exploring different ways to travel. She uses a special camera to find out how a bus ramp works to help people get on and off the bus. An animation shows ...

24-04-2023

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Series 1: 17. Piano And Drums

Do You Know? - Series 1: 17. Piano And Drums

Maddie looks at musical instruments. She uses a special slow-motion camera to find out how a piano works and how the keys on the piano are attached to levers and hammers. She sh ...

21-04-2023

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Series 1: 16. Lock & Key And Glass

Do You Know? - 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 1: 15. Crane And Bricks

Do You Know? - Series 1: 15. Crane And Bricks

Maddie visits a building site. She uses a special camera to see how a big crane works to move heavy objects from one place to another. An animation shows how the hydraulic mecha ...

19-04-2023

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Series 1: 14. Carousel And Wax Crayons

Do You Know? - Series 1: 14. Carousel And Wax Crayons

Maddie goes for a fun day out. She visits a fairground and goes for a ride on a carousel, using a special camera to find out how it works. An animation shows how the carousel go ...

18-04-2023

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Series 1: 13. Toilet Flush And Toilet

Do You Know? - Series 1: 13. Toilet Flush And Toilet

Maddie is in the bathroom. She uses a special underwater camera to find out how a toilet flush works and why it makes a gurgling sound. An animation shows how the float ball and ...

17-04-2023

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Series 1: 12. Helicopter Rotor And Tricycle

Do You Know? - Series 1: 12. Helicopter Rotor And Tricycle

Maddie is out and about exploring different ways to travel. She visits an airfield and uses a special camera to find out how the rotor works to help make a helicopter fly. An an ...

14-04-2023

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Series 1: 11. Popcorn And Pasta

Do You Know? - Series 1: 11. Popcorn And Pasta

Maddie explores some favourite foods. She uses a special slow-motion camera to find out why popcorn pops. An animation shows what popcorn is made of and how a water droplet hidd ...

13-04-2023

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Series 1: 10. Water Park And Ice Cream

Do You Know? - Series 1: 10. Water Park And Ice Cream

Maddie goes for a fun day out. She visits an indoor water park and uses a special waterproof camera and animation to show how a water slide works. She then goes underneath the s ...

12-04-2023

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Series 1: 9. Hot Water And Toothpaste

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 ...

11-04-2023

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Series 1: 8. Blood Pressure Monitor And Cast

Do You Know? - 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 ...

10-04-2023

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Series 1: 7. Boat Propeller And Hot-air Balloon

Do You Know? - 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 ...

07-04-2023

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Series 1: 6. Cat Flap And Woolly Hat

Do You Know? - 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 ...

06-04-2023

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Series 1: 5. Bike Chain And Tennis Ball

Do You Know? - 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 ...

05-04-2023

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Series 1: 4. Bin Lorry And Newspaper

Do You Know? - 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 ...

04-04-2023

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Series 1: 2. Fire Engine Hose And Reflective Strips

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 ...

03-04-2023

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Series 2: 25. Refrigerator And Mushrooms

Do You Know? - Series 2: 25. Refrigerator And Mushrooms

In today's episode, Maddie is at home to show us how a refrigerator works. She explains how the pump and the long pipes inside a fridge change a cooling liquid into a gas to hel ...

10-06-2022

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Series 2: 24. Barcode And Fish Cake

Do You Know? - Series 2: 24. Barcode And Fish Cake

In today's episode, Maddie is visiting a supermarket, where she finds out what barcodes are and how they work. At the checkout, we learn how an infrared scanner reads barcodes t ...

09-06-2022

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Series 2: 23. Prosthetic Limb And Detection Dog

Do You Know? - Series 2: 23. Prosthetic Limb And Detection Dog

In today's episode, Maddie is looking at the way things are made or trained to help us. First, she meets seven-year-old Anu, who uses a prosthetic leg. Maddie visits a workshop ...

08-06-2022

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Series 2: 22. Hand Dryer And Toilet Roll

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 ...

07-06-2022

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Series 2: 21. Fish Tank And Bath

Do You Know? - 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 ...

06-06-2022

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Series 2: 20. Kite And Wind Turbine

Do You Know? - 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 ...

03-06-2022

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Series 2: 19. Television And Carpet

Do You Know? - 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 ...

02-06-2022

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Series 2: 18. Lift And Spacesuit

Do You Know? - Series 2: 18. Lift And Spacesuit

In today's episode, Maddie is finding out about things that go up and down. She shows us how a lift works, when it carries people up and down between floors of a building. With ...

01-06-2022

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Series 2: 17. Bubbles And Chocolate

Do You Know? - Series 2: 17. Bubbles And Chocolate

In today's episode, Maddie is having a party! She finds out how bubbles work when we blow into bubble mixture. She shows us how the surface tension of water changes when we add ...

31-05-2022

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Series 2: 16. Posting A Letter And Colouring Pencils

Do You Know? - Series 2: 16. Posting A Letter And Colouring Pencils

In today's episode, Maddie is sending a letter in the post to the CBeebies house. She finds out how posting a letter works as she follows the letter's journey from the post box ...

30-05-2022

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Series 2: 15. Disco Ball And Jigsaw Puzzle

Do You Know? - Series 2: 15. Disco Ball And Jigsaw Puzzle

In today's episode, Maddie is having fun. She takes to the dance floor to show us how a disco ball works. We learn how light is reflected in lots of different ways, and a specia ...

27-05-2022

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Series 2: 14. Playground And Plant Pot

Do You Know? - Series 2: 14. Playground And Plant Pot

In today's episode, Maddie is having fun outdoors. First, she's in a playground learning how we keep swinging on a swing and how gravity helps us slide down a slide. She uses a ...

26-05-2022

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Series 2: 13. Hairclippers And Ballet Shoes

Do You Know? - 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 ...

25-05-2022

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Series 2: 12. Traffic Lights And Emergency Lights

Do You Know? - Series 2: 12. Traffic Lights And Emergency Lights

In today's episode, Maddie is looking at useful lights. She shows us how traffic lights work so that vehicles can travel safely through a road junction. She visits a traffic con ...

24-05-2022

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Series 2: 11. Aeroplane And Trainers

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 ...

23-05-2022

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Series 2: 10. Lifeboat And Concrete

Do You Know? - Series 2: 10. Lifeboat And Concrete

She goes on a training rescue mission with a lifeboat team to find out how the equipment on a lifeboat works. She shows us how the special thermal-imaging cameras are used to fi ...

20-05-2022

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Series 2: 9. Handwash And Vacuum

Do You Know? - Series 2: 9. Handwash And Vacuum

In today's episode, Maddie is cleaning up. She visits a factory where hand wash is made and uses her special camera to see inside a big vat to see the colour being mixed. Next, ...

19-05-2022

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Series 2: 8. Train Tracks And Paint

Do You Know? - Series 2: 8. Train Tracks And Paint

In today's episode, Maddie is at a train museum finding out how signal boxes work and how trains are moved from one track to another to get to the right place. Maddie puts her s ...

18-05-2022

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Series 2: 7. Canal Lock And Gate

Do You Know? - Series 2: 7. Canal Lock And Gate

In today's episode Maddie is finding out about different gates that open and close. She visits a canal lock to find out how canal boats travel up and down hill. Maddie jumps abo ...

17-05-2022

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Series 2: 6. Sleeping Bag And Mattress

Do You Know? - Series 2: 6. Sleeping Bag And Mattress

It's bedtime and Maddie is finding out about different things we sleep on and in! At a campsite she uses a special thermal camera to show how the layers in a sleeping bag work b ...

16-05-2022

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Series 2: 5. Opticians And Glasses

Do You Know? - Series 2: 5. Opticians And Glasses

Today, Maddie is finding out how wearing glasses helps us to see more clearly. She visits an optician to see how an eye test works by having one herself. She reads the charts an ...

13-05-2022

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Series 2: 4. Clock And Cutlery

Do You Know? - Series 2: 4. Clock And Cutlery

Today, Maddie is finding out how clocks tell the time. She heads to a clock factory and uses a special time-lapse camera to show how the hands on the clock move around. Maddie a ...

12-05-2022

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Series 2: 3. Ice Rink And Bouncy Castle

Do You Know? - Series 2: 3. Ice Rink And Bouncy Castle

Today, Maddie is having a fun day out. She uses a special thermal camera at an ice rink to find out how runny water freezes to make solid ice we can skate on. Next, Maddie heads ...

11-05-2022

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Series 2: 2. Umbrella And Carwash

Do You Know? - Series 2: 2. Umbrella And Carwash

Today, Maddie is having fun with water. She takes a car through an automatic car wash to find out how the computer uses sensors to tell the robotic car wash how to wash the car, ...

10-05-2022

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Series 2: 1. Shipping Container And Bubble Packaging

Do You Know? - 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 1: 3. Fizzy Water And Yoghurt

Do You Know? - 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 ...

06-04-2022

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Series 1: 1. Hamster Wheel And Insect Hotel

Do You Know? - 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 ...

04-04-2022

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Series 5: 3. Farming Robots And 3d Printer

Do You Know? - Series 5: 3. Farming Robots And 3d Printer

Maddie visits a robot workshop where they design farming robots that help farmers grow crops. She meets three farming robots, Tom, Wilma and Richard that work together on the fa ...

11-07-2021

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Series 5: 2. Cable Car And Viewing Tower

Do You Know? - Series 5: 2. Cable Car And Viewing Tower

Join Maddie as she finds out how cable cars work and visits a viewing tower to see how it was made. We learn how cable cars don’t have engines inside and see all the diffe ...

04-07-2021

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Series 1: 3. Fizzy Water And Yoghurt

Do You Know? - 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 1: 3. Fizzy Water And Yoghurt

Do You Know? - 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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