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Here Comes the Sun

CSEF · 2007 Product Science (Junior Division Only) Honorable_mention Award

Andrew R. Silveira · Fairmont Private - Edgewood Campus, Santa Ana, Orange County

Overview

Objectives/Goals My objective was to get an understanding of which sunscreens are most effective against ultraviolet radiation. Methods/Materials I used a UV detector to detect how many UV rays. First, i applied the suscreen on the detector to see how many rays the sunscreen blocked. After I tested all the sunscreens without water submersion, I then tested all the sunscreens with water submersion to see how many rays they bocked after being in cotact with water. Results I found that most of the sunscrees blocked about thesame amount of UVA rays, while after water submersion all the sunscreens were less effective. After the water submersion I found that the sunsreens blocked ten less than without water submersion. Conclusions/Discussion I concluded most of the sunscreens were effective in blocking UVA rays. But, because most sunscreens blocked less with water submersion, I concluded that most sunscreens are not waterproof.

Summary statement

Which sunscreens block the most ultraviolet ?

Help received

My dad helped me reord some of the data in my logbook.

Awards (1)

  • Honorable Mention

Competition history

  • CSEF 2007 Product Science (Junior Division Only) · Entry J1837

Resources

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