5/24/2023 0 Comments Koncham beat marchandi ra babu![]() You have to performthe experiment within a small window of time, under the hot sun and when thereare no clouds. The other variables for the experiment, such as the brand of thesunscreen lotion, the quantity of sunscreen lotion used for each experiment,the type of materials and the type of UV meter used for each experiment, and thetemperature, lighting conditions and humidity of the place where the experimentis conducted, must be kept the same for every experiment. ![]() The Experiment VariablesOur experiment involves takingsheets of glass and coating them with sunscreen lotion of different SPFratings, then placing the coated sheets of glass under bright sunlight andtaking a UV reading behind the coated glass.In our example, you would set up severalidentical experiments (called 'controls') with only the SPF ratingchanged.
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