How would you explain energy and the environment?
The Science on Stage festival set that challenge to teachers who came up with these experiments and talks:
See Video - Energy and environment
Representatives of ESA were among the founders of the competition along with their counterparts from CERN and the European Southern Observatory.
The programme aims to improve scientific (and particularly physics) literacy among European citizens, and to establish a network of experts on physics teaching and popularisation from all over Europe.
If you want to see more videos from the Science on Stage series, including the 2013 festival, visit the Science on Stage YouTube channel.
And if you have a performance for the festival next time around, find out about future contests on the Science on Stage website.
[This video was originally published on the ESA Science on Stage website in 2007]