Sir Patrick Moore attended the event

The event, which finished on Sunday, played host to a number of well-known stars including TV vet Joe Inglis and Tim Haines, creator of BBC's Walking with Dinosaurs.

On Friday, Patrick Moore appeared before a sell-out crowd of 500 people at the William Aston Hall in Wrexham.

The Wrexham Science Festival which started on Monday has been billed as the fastest growing festival in Britain.

Kay Rickard, who put the programme together, said the event has become extremely popular.

"Promoting public understanding of science is very important to us and we are delighted that 4,000 primary age children will have attended festival events," she said.

The creator of Walking with Dinosaurs was a festival highlight

"In addition 1,200 young people from secondary schools have participated in what we believe is a challenging and stimulating series of science based activities."

The scheme was set up in 1998 and is organised by Wrexham County Borough Council, Yale college, NEWI, the Welsh Development Agency and Education and Learning Wales.

Among the project's highlights was an insight into the television programmes of the future with Walking with Dinosaurs creator Tim Haines.

The University of Wales, Bangor, graduate showed the audience how he had created his famous documentary.