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ERIC Number: EJ1043238
Record Type: Journal
Publication Date: 2014-Oct
Pages: 4
Abstractor: As Provided
Reference Count: 9
ISSN: ISSN-0021-9584
Music Generated by a Zn/Cu Electrochemical Cell, a Lemon Cell, and a Solar Cell: A Demonstration for General Chemistry
Cady, Susan G.
Journal of Chemical Education, v91 n10 p1675-1678 Oct 2014
The circuit board found in a commercial musical greeting card is used to supply music for electrochemical cell demonstrations. Similar to a voltmeter, the "modified" musical device is connected to a chemical reaction that produces electricity. The commercial 1 V battery inside the greeting card circuit board can be replaced with an external power source such as a zinc and copper(II) electrochemical cell, a lemon battery or other zinc/proton cell variations, or a commercial solar cell. Directions are given to modify the musical circuit board, to make two types of homemade batteries, and to connect the "modified" musical device to an external power source to create a musical electrical circuit. Unlike a buzzer or flashing light, noticeable variations in music can warn the user of a gradual impending power failure. Students, including the visually impaired and blind, can relate the low volume and the slow tempo of a familiar song with weak or dying batteries and the lack of sufficient power.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Elementary Education; Secondary Education; Middle Schools; Junior High Schools; High Schools; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A