The scientific method uses critical thinking to gather data, or evidence about a particular phenomenon, examine and evaluate the evidence, in order to draw informed conclusions that substantiate an initial hypothesis (an unsubstantiated, proposed answer or opinion about what the experiment's outcome will be.) Look at some ads that make claims of having scientific evidence for the effectiveness of their products on TV, radio, in the newspaper or magazine. Can you identify any products that base claims on faulty use of the scientific method (not just false or misleading advertising, but by making a scientific claim) to get you to buy the product?