1. Part I: The Chemistry of Sun Protection
A STEM Approach to Environmental Health
The Breathe, Eat, Touch Project
Drs. Karen Bernd, Kristie Foley and Cindy Hauser
Davidson College

2. Define terms and classify Active Ingredients
Organic or Mineral? Chemical structure?
Sunscreen, Sunblock or Sunfilter?
Chemical or Physical?
SPF and broad spectrum?
Absorption, Scattering, Reflection?
Photoactive or Photostable: Free Radical Generation, reactive oxygen species (ROS) and antioxidants?
Water resistance?
Nanoparticles, micronisation, surface coatings?
Environmental persistence?
Skin penetration? Bioaccumulation?

3. Active Ingredients ZnO TiO2 PABA Benzophenone Cinnamates Anthranilates
Oxybenzone

4. This case was made possible by Grant # from the National Science Foundation to KB, KF, & CH.  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.