Plankton -the world of the very small.
A new way to 'Dial Away' your stains.
Listening in to lightning and rocket launches.
What are tomorrow's scientists up to today?
A chance to find out as teams of schoolchildren from all over the country compete in the third of four heats for the Sunday Times 'Science Fair' trophy. The winners will represent Great Britain at an international Science Fair in Holland.
Finding out the answers, pupils from Guthlaxton Upper School, Wingston, Leicestershire; Wallasey Technical High School, Wallasey, Cheshire; Lea Mason Church of England School, Birmingham
The Judges:
Professor William Kershaw, Dr John Carthy, Professor Eric Laithwaite
Presented by Paddy Feeny