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Inspector Morse

You may like to read the article on Morse code before attempting this question. Morse's letter analysis was done over 150 years ago, so might there be a better allocation of symbols today?

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Reaction Timer

This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.

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Bird Watch

Do you know which birds are regular visitors where you live?

Estimating Time

Age 11 to 14 Challenge Level:


Does it make sense to use averages to see how close someone is to 10 seconds on average?

What else might you need to take into account?