Wereld Water College (World Water College Programme) Booth nr 5: Ingredients in water at Wageningen University & Research. As a high school student you will get acquainted with interesting and demanding analyses of key substances present in water and in cosmetics. If natural soap or flavoured lemon is used as an ingredient, what are the differences? Measurements is knowledge! You will carry out a range of existing analytical methods and combine other practical experiences. In this lesson you have the opportunity to study important lab testing methods and explore parameters concerning water and cosmetic quality (Stand nr. 5 = intermediate education Level).