In this Clicker Book, pupils read about the relationship between the pitch of a sound and features of the object that made it.
They find out how (and why) the pitch of a sound can be changed by altering elements in simple instruments. These include varying the amount of air in which sound waves can vibrate, the length of a string across which sound waves can travel, and the tension of a drum skin.
Children can talk and write about how and why the pitch changes in the examples featured in this book, using the sets "Changing Pitch of Sound – Make a Book", and "Changing Pitch of Sound – Set One/Two/Three". For other Clicker resources on the topic, search for sound on LearningGrids.