L'incroyable cirque des sables
Bitz and Bob remember one of their adventures where they had to present shows in a circus. However, the trapeze artists had to be very careful not to fall, which makes it necessary to have a net strong enough to catch them up. In a studio, children recreate a similar project and try to make a net, but realize the importance of testing it, using heavy and light objects in order not to break it.
