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Are railings, doorknobs and other items touched by many people in your school made of self-sterilizing materials?
|  DO THIS:Test your railings before school opens and at the end of the day for bacteria. Is there a difference? Yuck!What would be a better material for a railing? What is the cost of disease in your school? What would be the cost of "healthy" railings? For more details: www.science-projects.com/Railings.htm
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