Catch up TV
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 water comes from and how it is sent to our homes. \n\nNext, 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.
Source: CBeebies
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