CBeebies | Do You Know? | How do train tracks work?

Описание к видео CBeebies | Do You Know? | How do train tracks work?

Maddie Moate is explaining how train tracks work.

Do you know how trains are able to cross the tracks?

For more fun facts from 'Do You Know?', visit the CBeebies website:
https://www.bbc.co.uk/cbeebies/shows/...

Visit us at http://www.bbc.co.uk/cbeebies

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