What is the scientific method? The scientific method is a process in which we find something in the natural world that serves as a model that can be confirmed scientifically. This process requires observations, collection, and analysis of data so that it can be duplicated by other scientists. For example, if we find ourselves in new places or environments, we first observe through our senses to learn or adapt to the new environment. Thus, we automatically make a hypothesis about the observation. A hypothesis is a prediction or hypothesis. If the prediction is true, the hypothesis can be used as a prediction tool, but it is not yet confirmed because it comes from our (subjective) mind. Therefore, the scientific method uses inductive and deductive reasoning to produce useful and reliable models of natural phenomena and nature. The purpose of inductive reasoning is to develop a general hypothesis or theory, while using a theory to explain specific outcomes is the meaning of deductive reasoning. In 1637 René Descartes published his Discours de la Méthode in which he described systematic rules for determining what is true, thus establishing the principles of the scientific method. There are four steps in the scientific method. First of all, the observation and description of a phenomenon. The observation is carried out visually and with the aid of devices. Secondly is to make a hypothesis to predict what the result we will get will be. Third, test the hypothesis by experimenting, predicting, and observing new phenomena that arise from the hypothesis. If the experiment fails the hypothesis is rejected. Therefore the hypothesis must be rejected or modified. Meanwhile, if the hypothesis is accepted, a theory based on repeating... middle of paper... the truth, but will also identify the error before the truth is established. Therefore, if we do not adopt the scientific method (observation, formulation of hypotheses and analysis), we will never know what the truth is. Furthermore, we will never get closer to the truth if we only make assumptions. Obviously, early understanding is important for establishing personal motivation. In conclusion, the scientific method is something about observation, measurable events that can be reproduced. It is also applicable to random events that have statistical distribution. This shows that the method is versatile. Furthermore, it is based on critical thinking. It is the process of questioning common thoughts or predictions, beliefs, and processing to identify assumptions and thoughts that were unevidenced and rational. Evidence is evidence regarding a matter in question.