Maddie's Do You Know? Episode Rating Graph
Oct 2016 - present

Oct 2016 - present
5.5

| E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | E10 | E11 | E12 | E13 | E14 | E15 | E16 | E17 | E18 | E19 | E20 | E21 | E22 | E23 | E24 | E25 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | |||||||||||||||||||||||||
| S2 | |||||||||||||||||||||||||
| S3 | |||||||||||||||||||||||||
| S4 | |||||||||||||||||||||||||
| S5 |
Browse episode ratings trends for Maddie's Do You Know?. Simply click on the interactive rating graph to explore the best and worst of Maddie's Do You Know?'s 98 episodes.

S3 Ep20
10.0
13th Sep 2019
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 broken his arm, as well as a radiographer. We see what happens when we have an X-ray and learn how the X-ray machine takes a picture of the bones inside our body before saving the picture on a special machine. Next, Maddie heads to a factory where they make socks in lots of different colours out of yarn. Maddie uses her slow-motion camera to give us a special view when the sock-turning machine sucks in the socks and flips them out the right way around. They look like wiggly snakes!

S1 Ep25
9.0
7th Sep 2016
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 bubbles and then keep them 'hidden' until the bottle is opened. Next, Maddie visits a dairy to see how milk is collected from cows and taken to a factory in a tanker. She then sees how the factory turns the milk into yoghurt.

S3 Ep11
8.5
13th May 2019
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 pulls off the roots and shakes off the soil. Then we see how the potatoes are carried up a ‘potato escalator’ to be packed into huge crates. Next, she visits a cereal factory to see how wheat biscuits are made. We find out how the wheat grains are cooked and dried in an oven – Maddie uses her special slow-motion camera so that we can see how the grains are heated – they look like they are dancing! Then Maddie helps to press them into wheat biscuit shapes ready to be packed and sent to the shops.

S3 Ep3
8.5
1st May 2019
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 car engine. Along the way she meets some robots that help deliver the car parts around the factory! Next, Maddie finds out how cars are loaded onto a car transporter. She climbs onboard for the ride with her special cameras as we learn how 11 cars are lifted in the right position using hydraulic pumps.

S3 Ep7
8.3
7th May 2019
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 show us the marvellous moment when a tiny caterpillar hatches out of its egg, and we see three Owl butterflies emerge from their pupa and spread their wings for the first time. Then Maddie heads to a wallpaper factory to learn how a repeat pattern is designed and the different colours are printed. She uses her special cameras to see how a printing machine uses rollers to print each separate colour and make the whole pattern repeat.

S3 Ep8
8.0
8th May 2019
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 digger’s tracks work to stop it sinking into the soil. Then she attaches a special camera to the digger – to see it in action as it lifts the soil high into the dumper truck! Next, she visits a wellie factory to see how wellies are made. Maddie uses her special cameras to see how the PVC material is injected into the wellie moulds – a bit like making a jelly! We find out how a different colour is injected to make the sole before they are squashed together to make a complete colourful wellie.

S3 Ep4
8.0
2nd May 2019
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 away again at night. She uses a special time-lapse camera at sunset to show the Earth turning away from the Sun when it is ‘going down’ at night time. Next, Maddie heads to a solar panel farm. She uses her special thermal camera to help us see how the solar panel cells collect the Sun’s energy and turn it into electricity that we can use.

S3 Ep1
8.0
29th Apr 2019
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 into the ground help to make it strong and stable. Then Maddie uses a special 360 camera to see all around her from the top floor. Next Maddie is finding out how birds fly. She visits a bird sanctuary and uses a special slow-motion camera to help us understand how Ollie the barn owl uses his streamlined body and powerful wings to take off, fly, and land.

S2 Ep14
8.0
20th Apr 2018
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 special camera to show us how friction stops us from going too fast. Next, Maddie goes to a factory where plant pots are made. She finds out how clay and shale from a quarry are mixed, shaped and baked into plant pots, then uses a special thermal camera to show us how hot the plant pots get when they travel through a kiln!

S2 Ep8
8.0
12th Apr 2018
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 special camera on the front of a train so we can see what happens to the points when the train switches from one track to another. Next, Maddie visits a paint factory to find out how paint is made. She uses her special camera to see inside the huge mixing vat where all the different ingredients are being mixed together, and we see how a computer is used to make all the different colours.

S1 Ep18
8.0
27th Oct 2016
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 closed and how the spray arms spin to spread the water around. Next, Maddie visits a sustainable forest to see where wood comes from and to see how trees are felled. She then goes to a furniture workshop to see how the wood is made into a wooden table.

S1 Ep17
8.0
26th Oct 2016
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 how the ramp is hidden in a compartment underneath the doors and how airbags allow the bus to lower on one side. Next, Maddie joins a road-building team to see how a motorway is made of different layers and uses a special thermal imaging camera to see how the hot asphalt is laid.

S1 Ep5
8.0
12th Sep 2016
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 the house. Next, Maddie visits a sheep farm to see how a fleece is sheared from a sheep. She then goes to a mill to see how the fleece is washed, spun and dyed and turned into wool. The finished wool is then knitted into a woolly hat.

S1 Ep10
7.5
19th Sep 2016
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 hidden inside each kernel of corn expands as it is cooked, making it pop. Next, Maddie visits a pasta factory to see how flour is mixed with water and turned into pasta dough and how special cutters are used to create different pasta shapes.

S1 Ep7
7.5
14th Sep 2016
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 around our bodies. Maddie then visits the plaster room and shows how a cast is made by having one put on her arm. She uses a special microscope camera to reveal how the fiberglass strands are woven together to make the cast strong.

S1 Ep12
7.3
21st Sep 2016
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 plug work together to refill the cistern after it has flushed. Next, Maddie visits a toilet factory to see how toilets are made from clay and how robots spray the toilets with a special paint to make them waterproof and shiny.

S3 Ep15
7.0
17th May 2019
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 types of clouds, but the clouds that make rain are called nimbus clouds. Maddie visits the national weather centre where they make the weather reports. She finds out how satellites high up in space can see the clouds moving and tell us when it might rain. Next, Maddie visits a radiator factory to find out how radiators are made to keep our houses warm. We see how big flat sheets of metal are pressed to make grooves, like teeth. The metal pieces are heated up and sealed together to make sure the water doesn’t leak out. Maddie takes her special camera on a journey along the radiator ‘washing line’, and we see how the radiators are sprayed with special paint to make them shiny.

S3 Ep14
7.0
16th May 2019
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 foods give us energy to move around, which help our bodies grow and repair, and which foods we get vitamins and minerals from. Then Maddie visits a meringue factory where she discovers how the proteins in egg whites work to make the meringue. She uses her special slow-motion camera to see how the giant whisks mix the egg whites with sugar, so that the mixture turns glossy and thick. And we see how the meringue is cooked to make it crunchy on the outside and gooey in the middle.

S3 Ep10
7.0
10th May 2019
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 to show us how the spring inside gets tighter and tighter and stores energy so that when it is released the cogs inside move the wheels. Next, Maddie visits a factory where cricket bats are made from willow trees, because it’s bouncy and strong. First the tree trunk is cut using a chainsaw and we learn how the wood is shaped using lots of different cutting and sanding machines. We see inside a robot that is shaped like a pineapple! Maddie uses her special slow-motion camera to see all the wood shavings flying off as the bat takes shape.

S3 Ep9
7.0
9th May 2019
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 hearing aid, before visiting the audiology department in a children’s hospital to see where hearing aids are made. Maddie finds out what happens when we have our hearing tested. She listens to different sounds through headphones so the Audiologist can see how well her ears hear sounds. Maddie then uses her special microscopic camera to see the tiny parts of the hearing aid before showing us what it’s like to have one fitted. Next, Maddie heads to a whistle factory to see how they are made. She uses her special camera to see big, strong stamping machines cut shapes out of brass and finds out how the cork ball gets put inside the whistle when it’s too big for the hole!

S2 Ep3
4.0
5th Apr 2018
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 to a bouncy castle factory to see how a bouncy castle is made from lots of different coloured pieces of material sewn together. She then has a go at bouncing when the finished jungle-themed bouncy castle is inflated and brought to life.

S3 Ep13
4.0
15th May 2019
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 opens the hive to see the busy bees working away. She uses her special slo-motion camera to see the bees fanning the hive with their wings to make the liquid honey evaporate and turn thick and sticky. We also see them carrying the pollen from the flowers in tiny ‘pollen baskets’ on their legs. Next, Maddie visits a pottery to find out how mugs are made from clay. We see the big lumps of clay being shaped into a mug shape by a fast spinning machine. Then Maddie shows us how the brightly coloured stripy glaze is painted on by hand.

S1 Ep9
4.5
16th Sep 2016
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 swimming pool to see what happens inside the pump room to pump the water to the top of the slide. Next, Maddie visits a factory to see how ice cream cones are made from a type of batter and how special hot plates are used to create the criss-cross waffle pattern.

S1 Ep15
4.5
24th Oct 2016
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 the matching key to unlock it. Next, Maddie shows how sand is made into glass. She visits a glass-blowing workshop to see how sand is turned into molten glass and then worked by the glass-maker into a brightly coloured glass vase.

S1 Ep8
4.7
15th Sep 2016
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 water comes from and how it is sent to our homes. Next, Maddie visits a toothpaste factory to see how toothpaste is made from different ingredients and uses a special slow motion camera to find out how the stripes get inside a tube of stripy toothpaste.

S3 Ep2
5.0
30th Apr 2019
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 seed and grows into a shoot. Next, she travels in a lift to the top of the high greenhouse to see the flowers and tomato fruits growing. We learn how the plant needs water, sunlight and carbon dioxide to make its own energy to grow. Next, Maddie heads to a compost farm to see how compost is made from things we might throw away. She uses a special microscopic camera to see wriggly worms, insects and bacteria that help break down the waste to make useful compost we can grow plants in.

S1 Ep4
5.3
9th Sep 2016
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 steer. Next, Maddie visits a factory to see how rubber, collected from trees, is made into tennis balls using a series of heavy presses. A microscopic camera reveals the special material used to cover the tennis balls with a furry coat.

S2 Ep19
6.0
13th Sep 2018
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. Using her special microscope camera, Maddie shows us how a pixel can make any colour from just three coloured lights - red, blue and green. Next she visits a factory where carpet is made. Maddie follows the journey that wool takes, from shearing a sheep to going through the factory, to end up in the carpets we have at home. Maddie uses her special slow-motion camera to show us how the different coloured threads are woven together on a loom to make a carpet.

S3 Ep12
6.0
14th May 2019
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.

S3 Ep18
6.0
11th Sep 2019
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 centre and takes to the waves on a surfboard. Maddie attaches her special cameras to the surfboard to learn how the energy underneath the wave can carry us along and how when it reaches the shore the wave slows down and breaks. Next, Maddie visits a dairy farm and finds out how milk from cows is made into ice cream. She uses a special thermometer to show how cold the ice cream mixture is when it comes out of the batch freezer and turns from a liquid to a solid.

S3 Ep19
6.0
12th Sep 2019
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 special cameras to show how the librarian helps us find a book in the library. We see how the books are sorted so that they all go back in the right place. Next, Maddie goes to a factory where books are made. She finds out how books start out as a big sheet of blank paper. Maddie shows us how this paper is printed with ink using a press and she finds out how the book pages are stitched together using a very fast machine with a needle and thread. She uses her special slow-motion camera to show us how each page of a book is made by being sucked up and folded in a special way.

S1 Ep2
6.3
6th Sep 2016
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 sends water to the hose. Next, Maddie sees how an ordinary white car is made into a police car using special blue and yellow reflective stickers. A microscope camera reveals the tiny prisms inside the stickers, which make them bright and shiny.

S1 Ep1
6.5
31st Oct 2016
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 work and why a magnetic field can pull magnets together or push them apart. Next, Maddie visits a factory to see how teddy bears are made, with eyes, ears and joints, and uses a special microscope camera to see the fibres of the stuffing.

S1 Ep22
6.5
3rd Nov 2016
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 close the zip. Next, Maddie visits a workshop to see how a dinosaur picture is screen printed onto a t-shirt. Her special microscope camera shows how a stencil, created on a screen, allows the ink to pass through and create the design.

S2 Ep16
6.5
10th Sep 2018
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 to the sorting office and finally to the house. Using a special infrared light, Maddie shows us how stamps are scanned to tell if they are first or second class. Next, she visits a factory where colouring pencils are made. She finds out how the coloured crayon inside is made from clay and, using her slow-motion camera, we see the wooden shaft of the pencil being made.

S2 Ep18
6.5
12th Sep 2018
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 the help of an engineer and her special cameras, Maddie show us how the gears and weights are controlled by a computer. Next, it's time for lift-off as Maddie heads to a space museum. We see how a spacesuit is made from lots of different layers of special materials to keep astronauts safe when they are working in space, and Maddie uses her special thermal camera to see how the suit keeps astronauts warm.

S2 Ep20
6.5
14th Sep 2018
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 speed, and uses a slow-motion camera to explain how a kite catches the wind to stay in the air. Next, Maddie finds out how electricity is made on a wind farm. She visits a wind turbine to see how it turns wind energy into electricity.

S2 Ep21
6.5
17th Sep 2018
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 a filter works inside a tank to help keep the water clean and free from fish waste. Next, Maddie visits a factory to find out how bath tubs are made. Starting with a thin sheet of plastic, she shows us how the bath is moulded by air suction. She uses a special camera to explain how a fibreglass gun is used to make the bath strong enough for us to use.

S2 Ep22
6.5
18th Sep 2018
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 switch the machine on and uses her special camera to see water droplets blasted off her hands in slow-motion. Next, Maddie heads to a toilet roll factory to see the how toilet rolls are made. Using a special camera we see inside a pulp-mixing machine, then how a giant mill squeezes the runny mixture into flat sheets of paper that are dried and made into toilet rolls.

S2 Ep17
6.7
11th Sep 2018
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 soap and how we can stop bubbles from bursting with our hands, and using her slow-motion camera, she shows how bubbles make a sphere shape. Next, Maddie heads to a factory where a party favourite is made - chocolate! We learn how chocolate starts out as a fruit, and we see the chocolates being made for an assortment box. Maddie also uses her special camera to see the super-fast robots that put the different chocolates into the right holes in their boxes.

S1 Ep1
6.5
31st Oct 2016
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 work and why a magnetic field can pull magnets together or push them apart. Next, Maddie visits a factory to see how teddy bears are made, with eyes, ears and joints, and uses a special microscope camera to see the fibres of the stuffing.

S1 Ep2
6.3
6th Sep 2016
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 sends water to the hose. Next, Maddie sees how an ordinary white car is made into a police car using special blue and yellow reflective stickers. A microscope camera reveals the tiny prisms inside the stickers, which make them bright and shiny.

S1 Ep3
7.0
8th Sep 2016
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 inside the lorry crushes the rubbish to make way for more. Next, Maddie visits a recycling plant to see how the rubbish is sorted. She then visits a paper mill to see how the old paper is recycled into newspapers.

S1 Ep4
5.3
9th Sep 2016
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 steer. Next, Maddie visits a factory to see how rubber, collected from trees, is made into tennis balls using a series of heavy presses. A microscopic camera reveals the special material used to cover the tennis balls with a furry coat.

S1 Ep5
8.0
12th Sep 2016
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 the house. Next, Maddie visits a sheep farm to see how a fleece is sheared from a sheep. She then goes to a mill to see how the fleece is washed, spun and dyed and turned into wool. The finished wool is then knitted into a woolly hat.

S1 Ep6
7.0
13th Sep 2016
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 pushes the boat through the water. Next, Maddie visits a factory to see how a hot air balloon is made from lots of pieces of material sewn together. She then joins a balloon team outside to take a ride in a finished hot air balloon.

S1 Ep7
7.5
14th Sep 2016
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 around our bodies. Maddie then visits the plaster room and shows how a cast is made by having one put on her arm. She uses a special microscope camera to reveal how the fiberglass strands are woven together to make the cast strong.

S1 Ep8
4.7
15th Sep 2016
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 water comes from and how it is sent to our homes. Next, Maddie visits a toothpaste factory to see how toothpaste is made from different ingredients and uses a special slow motion camera to find out how the stripes get inside a tube of stripy toothpaste.

S1 Ep9
4.5
16th Sep 2016
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 swimming pool to see what happens inside the pump room to pump the water to the top of the slide. Next, Maddie visits a factory to see how ice cream cones are made from a type of batter and how special hot plates are used to create the criss-cross waffle pattern.

S1 Ep10
7.5
19th Sep 2016
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 hidden inside each kernel of corn expands as it is cooked, making it pop. Next, Maddie visits a pasta factory to see how flour is mixed with water and turned into pasta dough and how special cutters are used to create different pasta shapes.

S1 Ep11
7.0
20th Sep 2016
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 animation shows how changing the angle of the rotor blades makes the helicopter go forwards and backwards. Next, Maddie visits a workshop to see how a tricycle is constructed from a big box of parts and to see how the tricycle can be adapted to suit a user's needs.

S1 Ep12
7.3
21st Sep 2016
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 plug work together to refill the cistern after it has flushed. Next, Maddie visits a toilet factory to see how toilets are made from clay and how robots spray the toilets with a special paint to make them waterproof and shiny.

S1 Ep13
7.0
22nd Sep 2016
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 goes round and how the crankshaft works to move the horses up and down. Next, Maddie visits a factory to see how different coloured wax crayons are made from paraffin oil and how a big mold creates hundreds of crayons in one go.

S1 Ep14
7.0
23rd Sep 2016
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, hidden inside the boom arm, enables the crane to extend high into the sky. Next, Maddie visits a factory to see how bricks are made from clay, shaped by rectangular molds, and then fired in hot kilns for several days to make them strong.

S1 Ep15
4.5
24th Oct 2016
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 the matching key to unlock it. Next, Maddie shows how sand is made into glass. She visits a glass-blowing workshop to see how sand is turned into molten glass and then worked by the glass-maker into a brightly coloured glass vase.

S1 Ep16
7.0
25th Oct 2016
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 shows how the strings inside the piano vibrate to produce musical notes. Next, Maddie visits a factory to see how a drum is made from lots of thin wooden sheets pressed together and shaped in a circular mould. She uses a special camera to see how the drum is given its shiny finish.

S1 Ep17
8.0
26th Oct 2016
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 how the ramp is hidden in a compartment underneath the doors and how airbags allow the bus to lower on one side. Next, Maddie joins a road-building team to see how a motorway is made of different layers and uses a special thermal imaging camera to see how the hot asphalt is laid.

S1 Ep18
8.0
27th Oct 2016
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 closed and how the spray arms spin to spread the water around. Next, Maddie visits a sustainable forest to see where wood comes from and to see how trees are felled. She then goes to a furniture workshop to see how the wood is made into a wooden table.

S1 Ep19
7.0
28th Oct 2016
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 cooked. Next, Maddie visits a mill to see how kernels of wheat are ground and turned into flour. She then visits a factory to find out how the flour is made into different types of bread and baked in a very large oven.

S1 Ep20
7.0
1st Nov 2016
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 chains inside the escalator which make the steps move. Next, Maddie visits a factory to see how wheelbarrows are made from metal sheets to help people move heavy things around outside. She attaches a special camera to a big robot to see it working.

S1 Ep21
7.0
2nd Nov 2016
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 and pads and how they move to slow down and stop the car. Next, Maddie visits a factory to see how a car is made from a large roll of steel sheeting. She uses special cameras to show how robots work with people to put the different parts of the cars together.

S1 Ep22
6.5
3rd Nov 2016
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 close the zip. Next, Maddie visits a workshop to see how a dinosaur picture is screen printed onto a t-shirt. Her special microscope camera shows how a stencil, created on a screen, allows the ink to pass through and create the design.

S1 Ep23
7.0
4th Nov 2016
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 visits a factory to see how a soft play centre is made. She uses a special microscope camera to look at the foam stuffing and sees how all the pieces are sewn together to make play shapes. Finally, she sees how an airbrush is used to make the wings of a rocking parrot.

S1 Ep24
7.0
5th Sep 2016
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.

S1 Ep25
9.0
7th Sep 2016
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 bubbles and then keep them 'hidden' until the bottle is opened. Next, Maddie visits a dairy to see how milk is collected from cows and taken to a factory in a tanker. She then sees how the factory turns the milk into yoghurt.
Loading...
The first episode of Maddie's Do You Know? aired on October 31, 2016.
The last episode of Maddie's Do You Know? aired on June 06, 2021.
There are 98 episodes of Maddie's Do You Know?.
There are 5 seasons of Maddie's Do You Know?.
Yes.
Maddie's Do You Know? is set to return for future episodes.