Experimentation is considered to be the investigation of a phenomenon. During this study, all the necessary variables that in some way influence it will be eliminated or introduced. Experimentation is considered one of the stages of the scientific method.
Experimentation is commonly used to test certain hypotheses that are had about something, generally these investigations are carried out in laboratories. Once the theory is formulated, the researcher must check if it is real, if it is true, for this, endless experiments must be put into practice by changing the variables that participate in the process and thus be able to verify if it is fulfilled.
One of the creators of the experimentation process was Galileo Galilei, he wanted to check many of his hypotheses through experimentation, when he began his research about falling bodies, he wanted to check that if we launched at the same time and from a two objects, one light and the other heavy, would fall with the same speed and reach the ground at the same time, in order to verify this theory he carried out many processes of experimentation and measurement that led him to determine exactly that his theory was true by For example, Galileo climbed to the top of a tower and from there he launched several objects of different weight, which reached the ground simultaneously, thus proving that his theory was real.
Physics and Chemistry are also part of the experimental sciences since their object of study and their problems raised have to be exposed to experimentation.
Biological experimentation is based on the controlled experiment, where there are groups of people chosen at random and who are comparable in all aspects, except the one that is being studied, always taking into account the variation related to the material biological. You should always keep in mind certain useful rules such as paying close attention to every detail, always keeping specific notes and being objective when issuing results.
Experimentation as well as another research measure is not necessarily undoubted, the ineptitude for evidencing an assumption in an experimental way, does not prove that it is wrong.
