Class 6 St Lawrence

String telephones work only if two yoghurt pots are put together with a string. They also work around corners. You can make them as long as 4 metres until no sound can be heard. They work by talking into a yoghurt pot at one end,and at the other yoghurt pot at the other end(There aren’t two yoghurt pots at one end)goes at the other person’s ear, and he or she can hear what the other person is saying at the other end.