In this Activity, students investigate static electricity. They observe that charged objects attract a narrow stream of water, and find that charged combs and glass rods have opposite charges. This Activity could be used to introduce the notion of positive and negative electric charge. It is appropriate when studying atomic theory, and when introducing electrochemistry. An application of static electric charge is xerography, the basis for photocopiers and laser printers.
Journal Staff; 1998, 75, 80A.