About This Lesson
This lesson is suitable for the end of a topic on sound and hearing. It tests the students' ability to transfer and apply knowledge of sound waves to a new situation - an instrument called a hang that they would not have come across before.
The lesson also requires that you have a 'sound tube' which can be bought cheaply from toy shops or watch video on it http://www.youtube.com/watch?v=CuGnsW0ysrA&feature=player_embedded
