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Unscrambling a Secret Message

Free - no account required

Created for Years 5-6, 7-8

Duration: 1 hour

Can you unscramble the hidden message?

Unscramble a hidden message by figuring out missing letters in common words. This activity uses a a substitution cipher, and students can go on to create their own hidden messages. Substitution ciphers are an example of encryption, which is used when data needs to be sent securely.

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Curriculum Concepts

Key concept	F-2	3-4	5-6	7-8	9-10
Digital systems	(ACTDIK001) Recognise digital systems Explore digital systems with purpose	(ACTDIK007) Explore digital systems with purpose Peripherals and components Transmit data	(ACTDIK014) Peripherals and components Connecting digital systems Transmit data	(ACTDIK023) Hardware specifications Connecting digital systems Transmit data Cryptography	(ACTDIK034) Operating systems Connecting digital systems Transmit data Cryptography Access control

Linked Resources

Cryptography: Cipher Wheels

Learn the basics of encryption through simple activities that convert plain text into simple ciphertexts.

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Data encryption

Learn how data is protected using encryption.

Try it out! More info

Unscrambling a Secret Message

Key concept

Digital systems

Cryptography: Cipher Wheels

Data encryption