themthem Posted April 11, 2018 Report Share Posted April 11, 2018 Hi everyone, I was planning to do my extended essay in chemistry and came up with a topic. I haven't framed the research question yet, but my topic is about UV and sunscreens. So I was thinking about finding 1 or 2 chemicals in 2 different sunscreens and comparing their effect on blocking harmful UV (UVA and UVB). I also plan to determine which substance is more effective at blocking harmful UV rays. Is this topic okay? I wasn't sure whether it completely fits in the extended essay topic category. I've been having lots of trouble finding a good topic. Thanks for your help. Reply Link to post Share on other sites More sharing options...
kw0573 Posted April 12, 2018 Report Share Posted April 12, 2018 It sounds interesting and easy enough to explain the theory and develop a procedure. There may be some additional reading you need to do to fully explain how sunscreens work (on a molecular level). I think you need an additional independent variable, such as concentration of chemical, in addition to identity of chemical. Wish you the best! Reply Link to post Share on other sites More sharing options...
themthem Posted April 13, 2018 Author Report Share Posted April 13, 2018 Okay, thanks for providing a starting point for my research! Reply Link to post Share on other sites More sharing options...
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