Girls' Day took place nationwide on 27 April. This year, the MPA participated with an offer in non-destructive testing. Under the motto "We make the hidden visible", seven participants were able to try out various non-destructive tests for themselves. X-rays were used to look inside mobile phones and surprise eggs. In thermography, the pupils experienced how cold and heat can be used to paint pictures and make processes and structures visible. Finally, the participants were allowed to make their way through a labyrinth with the video endoscope. After an eventful morning, we released the participants with the new impressions back into everyday school life.