Direct current (DC) electricity flows through a closed circuit of people, and a battery-powered ball lights up. In this activity, the Energy Ball (or UFO Ball) is a Ping-Pong ball look-alike battery-powered ball that produces and converts a small current into light and sound energy. It contains two small, external metal contacts that when touched simultaneously complete an electrical circuit and cause the ball to flash and emit sound. This discrepant-event demonstration serves as a visual participatory analogy for building connections within and between classrooms, while simultaneously serving as an engaging hands-on and minds-on way to get students thinking about electrical circuits.
Type Book ChapterPub Date 3/1/2010