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What's in My Water Bottle?

A Question of Environmental Estrogens



Author:

Janna R. McLean
College of Arts & Sciences
Olivert Nazarene University
jmclean@olivet.edu

Abstract:

In this interrupted case study, two students explore evidence suggesting that environmental estrogens leach out of some plastic containers and that these chemicals have a negative impact on the development of mammals. Students analyze data, consider the quality of the data, and then develop their own conclusions. They are also asked to consider their role as future scientists in teaching society about potentially harmful chemicals. This case study could be used in upper-level anatomy and physiology courses or in a developmental biology course.

Objectives:
  • Consider what good scientific evidence is.
  • Analyze real data.
  • Evaluate a scientific argument.
  • Discuss what it means to be a scientifically literate member of society.
Keywords: Bisphenol-a; BPA; environmental estrogen; environmental hormone; polycarbonate; water bottles; plastic safety; plastics; experimental design
Topical Area: Scientific method
Educational Level: High school, Undergraduate lower division, Undergraduate upper division
Formats: PDF
Type/Method: Interrupted
Language: English
Subject Headings: Physiology   Biology (General)   Environmental Science  
Date Posted: 10/21/99
Date Modified: N/A
Copyright: Copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work.

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