Delhi Public School Agra on Instagram: "“Learning by doing is the only way to truly understand.” – Paul Halmos Grade 4 students had an enriching and fun-filled experience during their visit to the Science Laboratory for the activity “Science in Action – Exploring Water Purification". They delved into the fascinating process of making water pure and safe through hands-on demonstrations and learnt about various purification methods such as evaporation, boiling, sedimentation, decantation, and filt