Making a simple string telephone allows pupils to see that sound is a vibration carried by a solid, i.e. the string. String Telephone
This is part of a second level activity for Vibrations and Waves.
String Telephone Lesson Plan Through research on how animals communicate, I can explain how sound vibrations are carried by waves through air, water and other media. SCN 2-11a.
See also this activity from the Primary Science Teaching Trust Sounds of Science
