When are experiments done?

Experiments are carried out in several cases. The first is the need to prove or disprove a theory. When a scientist puts forward a theory, then it must be confirmed, refuted or refined. This is where experiments are needed, although not all theories are proven experimentally. The second case is the necessity of obtaining a theory. First, an experiment is carried out, and based on the results, a hypothesis and theory are formed. Experiments have helped science a lot and it is thanks to the empirical method that we have medicines, knowledge about the world around us and new species of plants and animals.