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Project title Sunscreen soap and UV radiationFeatured science projectScience project video
Difficulty Level High school
Project page  Click here to view this science project

Description
This science fair project was conducted to ascertain the effectiveness of sunscreen soap in providing protection against ultraviolet radiation from the sun. The tests were done using different concentrations of Octyl-salicylate mixed in glycerin (soap ingredient) and alcohol. 

Instructions preview
1. For this science fair project, the independent variable is the concentration of Octyl salicylate in the soap solution. The dependent variable is the level of the UV index measured. This is determined with the UV meter. The constants (control variables) are the time the readings are taken, the intensity of sunlight and other weather conditions on the day of testing and the location where the testing is done. 2. The 5 sheets of glass and 5 beakers are labeled as 0%, 2%, 4%, 6% and 8%. Using the measuring cylinder, 100ml of alcohol is poured into each beaker. .....
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