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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 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 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.