boots uses science for making sure that the products they sell for the customers are usefull to them and also doesn't affect you. the products books makes envolves science.
Chemists need to have studied compounding of medication, patient care, safety and efficacy of medicine and providing drug information. Chemists are then experts on medicine and assessing patients...
People have always had questions. Science is a way of giving reliable answers to these questions. It is a useful and accurate way of discovering new things.