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1 November 2011 The Bactericidal Effect of Sunlight
Maria João Fonseca, Fernando Tavares
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Abstract

Sunlight is required for vital biological processes. However, solar ultraviolet radiation can have a detrimental impact on living organisms, by acting as a natural mutagenic agent. With this activity, intended for middle school and high school, we propose a simple hands-on experiment to investigate the bactericidal effect of sunlight. The activity provides appealing visual results and opportunities for extension of inquiry. Procedural instructions, discussion topics, and assessment suggestions are detailed.

© 2011 by National Association of Biology Teachers. All rights reserved. Request permission to photocopy or reproduce article content at the University of California Press's Rights and Permissions Web site at www.ucpressjournals.com/reprintinfo.asp.
Maria João Fonseca and Fernando Tavares "The Bactericidal Effect of Sunlight," The American Biology Teacher 73(9), 548-552, (1 November 2011). https://doi.org/10.1525/abt.2011.73.9.8
Published: 1 November 2011
JOURNAL ARTICLE
5 PAGES

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KEYWORDS
bacteria
DNA
mutation
science experiment
sunlight
ultraviolet radiation
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