Youth programme which answers questions from children. Presented by Jochem van Gelder. 1. How does an archaeologist know where he can search? Visit to an archaeological office, an archaeological site and a conversation with an archeologist. 2. Why do karate sportsmen scream loud? Visit to a karate school and a conversation with Ries van Toorn (coach Dutch karate selection). 3. How are balloons made? Visit to a balloon factory in Germany and a conversation with a factory employee. 