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A cipher is a code used to protect information that is being stored or communicated, so that only people who are allowed can access it. This activity involves making a cipher wheel of your own, which you can use to encrypt and decrypt messages.

Two yellow paper disks. One disk has letters on the outside and numbers on a smaller attached disk. Second disk has letters on the outside and letters on a smaller attached disk.

Curriculum links

Find out more

Learn more about codebreaking and the Enigma machine on the Science Museum Group Collection website.

Explore a 3D view of the Enigma machine.

Downloadable resources

SMG Learning Activities – Cipher Wheel (PDF Document)

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