In this video from DragonflyTV, Aaron and Justin, who spend lots of time outdoors surfing and bike riding, test which level of sunscreen best protects their skin from the harmful effects of the Sun’s rays. The boys order a set of special water bottles designed to change color when exposed to ultraviolet rays. They then apply olive oil, shortening, and three sunscreens of different sun protection factors (SPFs) to the bottles and gauge how well the applications work. The boys ultimately learn that the higher the SPF, the better the protection.
This media asset was excerpted from DragonflyTV: "Sunscreen by Aaron and Justin" from Twin Cities Public Television.