Send us those science questions your parents stumble over.
Paddy Feeny will be phoning the lucky ones and putting them on the line to the panel of scientists.
This week there are two guests: Cherry Bramwell answering questions about animals, living and dead, and Heinz Woolf on walking machines, electronic brains and machines we might find in the home now and in the future.
As usual you can talk to Professor Richard Gregory about inventions and how the brain works, and you can try out for yourself ARTHUR GARRATT 'S experiments.
If you would like a chance to talk on the telephone to the experts, send your question on a postcard, giving name, age and telephone number, to: Dial a Scientist, BBC. Broadcasting House, London W1A 1AA Producer ALISTAIR BROWN