Place this clip as the main track under sink and soap visuals, not as a sting between scenes. Follow it with light classroom chatter or running water sounds, and keep other songs out until the hand washing sequence finishes completely.
About this sound
La Canzone del Lavarsi le Mani is a full Italian children's song about washing hands, running just over a minute and credited to Scottex. Sung as a cheerful singalong, it turns a daily hygiene routine into something playful and encouraging, giving kids a happy, catchy feeling while they learn to scrub properly.