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Date post: 12-Jan-2015
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Science Expo Presentation
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Science Expo Presentation

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Which Sunscreen, 15SPF or 30 SPF, let the most ultraviolet

rays through?

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HypothesisThe 30 SPF will block the most

ultraviolet rays

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Materials

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Whithout sunscreen

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Results

The result of the experiment is the 30 SPF blocked the

most ultraviolet rays.

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http://www.epa.gov/sunwise/doc/sunscreen.pdf

Links

http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5104a3.htm

http://www.skin-whitening-product.com/sunscreen-facts-and-myths.html


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