The Royal Institution of Great Britian have hosted their "Christmas Lectures" on a topic of Science every year since 1825 (except during 1939-45).
These lectures have been presented to children of all ages to foster within them how wonderful the world of science around them is. They have been broadcast usually for one hour a day over 3-5 days every Christmas from St. Stephens Day onwards.
The lectures themselves have been presented by some of the greatest scientists that have ever lived - from the likes of Michael Faraday (who hosted the lectures for ten consecutive years from 1851-60), John Tyndall, James Dewar, W.H. Bragg, Carl Sagan to even David Attenborough and Richard Dawkins.
Royal Institution Christmas Lectures - Wikipedia, the free encyclopedia
This year the lectures are presented by Dr. Peter Wothers with his topical chemistry entitled "The Modern Alchemist" with the lectures focussing on air, water and earth.
The Royal Institution of Great Britain | 2012 Christmas Lectures
They are fantastically designed lectures with interesting demonstrations from which children (and adults) can learn about the science ongoing in the world around them.
The lectures start tonight on BBC4 at 8PM and are available on the website of the Royal Institution and the BBC iplayer thereafter.