Sound vibration with a coat hanger investigation

TIn this package you will find - a worksheet and an assessment rubric. To conduct this investigation you will need to collect several metal coat hangers and tie string to two ends of the coat hanger. Place students into teams of two. Each team has a set of materials to test using their coat hanger. The strings on the coat hanger are ‘draped’ around the students ears. This is how the student will pick up and sense the vibration. The student use the worksheet to record their findings. Each student will ‘tap’ a selection of materials onto the wire of the coat hanger and the other student will indicate if they sense the vibration.