With 'Active H2O', Franziska Raimer (15), Sara Wallinger (15) and Bianca Hartmann (15) from Lise-Meitner-Gymnasium in Unterhaching have developed a wearable chip in wristband format that reminds people to drink enough. "There are a lot of people who drink far too little every day because they forget in the stress of everyday life," explain the three young women. The drinking chip is intended to provide a remedy by means of vibration and secured the team third place with prize money of 1,000 euros.