This thesis explores the topic of experiments in the practical context of teaching natural sciences. Nature and society is an obligatory subject in elementary schools, in which students are introduced to content from the fields of natural and social sciences. Besides the educational and developmental importance of natural sciences, the subject is also of practical importance. Through practical work, students discover their surroudings and engage more of their senses. A very important tool used in teaching of natural sciences is - the experiment. The goals of this thesis are to elaborate the experiment as a method of teaching, to introduce elements and the procedure of performing experiments, and to suggest some examples of experiments which could be performed in the period of the first to the fourth grade of elementary school. The selected example experiments were chosen from various books, textbooks and workbooks, and each experiment is followed by a description of its aim. The selected experiments are follow the themes defined in the "National plan and programme for the subject of Nature and society in elementary schools". They are also sorted from the first to the fourth grade of elementary school, respectively from the simplest to the more elaborated experiments. Due to the quality of knowledge they offer, it's important to perform as many experiments as possible. Especially because an essential task of contemporary schools is to teach students to integrate the knowledge and draw conclusions, thus preparing them to be creative in solving problems they will encounter in their future careers, performing jobs and solving problems that are today still unknown .