Grade 1 · Unit 6: Hearing sounds
Listen! What can you hear?

A market is full of sounds. Rickshaw bells ring. People call out. A cat meows.
A thing that makes a sound is a sound source. A drum, a bell and a radio are sound sources.
Your voice is a sound source too. You use it to talk and sing.
Close your eyes and listen. Can you hear rain? A fan? Birds?