Maddie's Do You Know?

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.

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.

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.