Maddie's Do You Know? - Episode Guide

Maddie visits a pet shop and uses a night-vision camera to find out how a hamster wheel works and visits a factory to see how an insect hotel is made.

Maddie looks at the emergency services. She finds out how a fire engine hose works and sees how a police car uses special reflective stickers.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Maddie is looking at toys. She uses a special camera to find out how the magnets on a train set work and visits a factory to see how teddy bears are made.

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.

Maddie goes for a drive in the car. She uses a special microscope camera to find out how car brakes work and visits a factory to see how a car is made.

Maddie uses a microscope camera to look at the zip on her hoodie and visits a workshop to see how a dinosaur picture is screen printed onto a t-shirt.

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 trains. She visits a shipping port and uses a special camera attached to the shipping containers to find out what happens when they are lifted on a big crane. Next, Maddie visits a bubble packaging factory and uses a special slow-motion camera to show how the air gets trapped inside the bubble packaging when it is made.

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, and she uses a special waterproof camera to see the big brushes in action. Next, Maddie heads to an umbrella factory to see how umbrellas are made using waterproof material. She uses a special slow-motion camera to show how the water droplets bounce off the waterproof material to keep us dry.

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.

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 also looks inside a battery-powered clock to see how they work. We see the tiny cogs that turn each of the hands so we can tell the time. Next, it's dinner time and Maddie visits a cutlery workshop to see how sheets of metal are made into forks. With a special microscope camera, we find out how the patterns are made using a special machine.

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 and shapes on the wall and looks into a special camera that takes a picture of the back of our eyes to make sure they are healthy. Then, Maddie shows us how glasses frames are made by shaping gold wire at a factory. Maddie uses a special microscope camera to show us the ant-sized screws that hold glasses together!

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 by trapping warm air inside to keep us warm. Next, Maddie visits a mattress factory to see how a mattress is made from layers of foam and material, a bit like a giant sandwich! She uses a special camera to see the tiny holes in the sponge that make the mattress nice and soft for us to lie on.

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 aboard with her special steady camera as the canal boat moves through a lock so we can see the gates in action. Next, Maddie visits a blacksmith's workshop to find out how a decorative steel gate is made. We see the pieces of steel being cut and welded together. Maddie uses a special thermal imagining camera to see the sparks fly, and how hot the metal becomes, when it is joined together.

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.

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, Maddie visits an appliance testing centre to find out how a vacuum cleaner works. She takes apart a vacuum cleaner to show us all the different parts and, using her special camera, show us how air gets sucked up through the machine so the filter can collect all the dirt and dust from our carpet!

Today, Maddie is learning about helpful vehicles. 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 find people who are in trouble - even at night! Next, she visits a quarry to see how gravel, sand, cement and water are mixed together to make concrete. Maddie uses her special cameras to follow the journey the ingredients take from the quarry to the plant where everything is mixed together. We see how the mixing lorry then takes the concrete to the building site and how it is poured to make a road!

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 flight simulator. We see how the pilot uses the controls in the cockpit to make the aeroplane take off and land. Maddie uses special cameras so we can see the same view as a pilot when they fly a plane. Next, she visits a factory where trainers are made from different materials. She uses a special camera to see how the robotic machines make the trainers at high speed, and she shows us how to tie bows in our shoe laces.

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 control centre and uses a special camera high up in the air to see all the traffic in action at a busy junction. Next, Maddie visits a factory where emergency warning lights are made using computer designs. She helps to pick the components to make the lights and, using special cameras, we see how all the wires fit together to make a police light! Maddie shows us the light being fitted on top of a police car and tested for the first time.

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-motion camera lets us see the clippers in action. Next, Maddie visits a factory where ballet shoes are made. Using materials like satin and ribbon, Maddie sees how all the different cutters, sewing machines and hammers are used to put ballet shoes together.

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!

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 special camera on a long pole shows us how the tiny mirrors reflect light around a room. Next, Maddie heads to a factory where they make jigsaw puzzles from wood. Maddie's head camera gives us a special view when the puzzles are cut using an electric saw.

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.

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.

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.

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.

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.

In this episode, Maddie visits a planetarium to learn all about stars, including how they're made and how our sun is a star. Later, she finds out all about stop-frame animation and how it's filmed

Today, Maddie learns all about strong structures. She goes to a nature reserve to learn about birds' nests before heading to a bike helmet factory to find out about a material called carbon fibre.

Maddie visits an electric car factory to learn how an electric car works and how they make the energy they need to move. Afterwards, she heads to the beach to find out how hot and cold air make wind.

Maddie finds out how we use our bodies to keep a hula hoop up in the air with something called centripetal force, as well as heading to a tent factory to find out how tents are made from nylon

Maddie visits a reservoir, a draw-off tower and a water treatment plant to find out about how we get our drinking water. Afterwards, she goes to a farm to learn about how carrots are grown.

Maddie learns how a radio telescope collects radio-waves and finds out how a maze is made.

Maddie learns how bike bells make a ringing sound and how line markings are made.

Maddie learns why things float and discovers how sand on a beach is made.

Maddie learns how road sweepers clean our streets and how paper straws are made.

Maddie learns how glass is recycled and visits a factory to discover how jam is made.

Maddie finds out how a snail moves and discovers how a tractor is made in a factory.

Maddie learns how a window cleaning cradle works and finds out how shadows are made.

Maddie discovers how a forklift truck works and learns how dried fruit is made.

Maddie finds out how a ferry can transport cars over water and learns how a globe is made.

Maddie learns how baggage gets onto an aeroplane and finds out how a rucksack is made.

Maddie learns how a lamp works and visits a factory to see how a playhouse is made.

Maddie learns how a speaker works and discovers how colours in paint and light are made.