These are used to transmit sound when the student plucks the string or talks through the device. Background information for the teacher is also provided. New Elementary students construct a duck call using a kitchen straw and a pair of scissors. A printable sheet is provided to hand out to your kids with easy instructions for them to read. You must click on the experiment icon in order to get to this lab.
Students can become aware of the various sounds created by each item.
Background information for the teacher is provided. This site defines sound. It uses a speaker sound cone to demonstrate pressure's changing effects. This is a teacher lesson plan. This site contains a good movie clip on waves.