What IS Sound Sounds are all around us A dog barks A bell rings A motor hums All this sound is a form energy of
We hear sound when something vibrates or moves back and forth The vibrations travel in waves Our ears catch the waves and hear sound the
How Sound Travels Sound waves travel in all directions You can hear fireworks boom and crackle from nearby anywhere
Sound reflects or bounces off objects An echo is a reflected sound The large shapes on this wall reflect the sounds that instruments make The shapes help fill the room with Music i A 3
