This week, Derek and Annabel are in the studio looking back at the hobbies everyone had in 2009, Claudia shares some fascinating facts about the human body, while Cerise has been busy in her workshop making good use of old newspapers. And, as always, there is music chosen by school pupils.

Derek visits London to learn about Greenwich Mean Time, while Kim visits the Northern Lighthouse Board. Plus Derek gets creative with sand in Weymouth, and there is a look at how Claudia and Layla got on when they attended the Glasgow Science Festival.