Prep2-B- Science experiment- Soluble & Insoluble Grade Prep2-B enjoyed an exciting learning experiment where they explored the concept of soluble and insoluble substances. As part of the activity, they mixed materials like salt and sugar in water and observed them dissolve – learning that these are soluble. They also added pebbles, which did not dissolve, helping them understand what insoluble means. | Delhi Public School Raj Nagar (DPS RajNagar)