Question

Ekmanoor was asked by his science teacher to make a model of a stethoscope with a funnel, a rubber tube and a balloon. While he was making this model at home, his younger brother asked him about his work. What would he have answered​

Answer 1

I would explain to him that a stethoscope was an a medical instrument for listening to the action of someone's heart or breathing, typically having a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces, for a science project.