Hundreds of pupils in Britain's biggest science lesson

The Disovery Park at Sandwich - the former site of the drugs company Pfizer - was taken over by hundreds of primary school children this week for Britain's biggest ever science lesson.

Hands-on experiments included extraction of DNA from fruit, murder-mystery forensic tests, and the creation of a witch's cauldron. Nashreen Issa sent this report from the East Kent Science Jamboree.