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Topics > Physics > Heat (Thermodynamics)

	Project title	Do different brands of sunscreen have different strengths?
	Difficulty Level	Middle school
	Main link	Click here to view all details of this exciting project (Cached) (View 3rd party site)
Description
I wanted to know if SPF matters when you buy sun block. For example, does a CVS brand 30 sunblock work better than a CVS brand 15 sunblock? I also wanted to know if higher priced sunblock works better than lower priced sunblock of the same SPF? My hypothesis was that the higher the SPF the better it would protect and that higher priced sun block would work better than lower priced.
Ingredients
This idea is contained in a third-party website. To view the science fair projects, please click on the link above. Copyright in the third party website belongs to the relevant author.
Brief Instructions
[Please see third-party website for instructions]




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