On 7th April, 2022 the students of Grade IV had a guest speaker session on the topic ‘Water borne diseases”, which is connected to their present line of study in the PBL Inquiry, ‘How do we create a system to provide safe drinking water to all at a low cost?’ The guest speaker, Dr Amulya Mysore, a consultant Pediatrician and a specialist in child development, enlightened young minds about the need for clean water, hygiene and sanitation facilities. It was an interesting session where she provided information in an organized flow from contamination of water which leads to various diseases to preventive measures. At the end of the session, the students had a chance to get their questions related to the topic answered. It was an interactive session where students became acquainted with the consequences of consuming unsafe drinking water.