CBeebies | Do You Know? | Posting a letter 

Maddie Moate from 'CBeebies Do You Know?' explains the process of posting a letter!
What happens to your letter once you have posted it in the letter box? Find out what goes on behind the scenes at the sorting office.
For more 'Do You Know?' fun facts for you to find out, visit the CBeebies website:
www.bbc.co.uk/...
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