Popularizing Natural Sciences by Means of Scientific Fair

Science popularization is demanding from the financial as well as the time point of view. It is necessary to find the premises that would be easily available to general public. Another important step is to promote the event so that it would attract the audience. The preparation of scientific experiments itself also requires some financial resources. If we want to take advantage of these resources in the most useful and effective way, we have to find answers to the question: "What, where and how do we want to popularise?" In the paper, we describe one-day project aimed to popularization of scientific fields carried out by eight departments of the Faculty of Natural Sciences, Constantine the Philosopher University in Nitra. The project was named Scientific Fair - Science you can see, hear and experience. Its main goal was to present seven scientific fields - Physics, Informatics, Mathematics, Geography, Ecology, Chemistry and Biology. Popularization was carried out as experimental interactive activities unveiling the undisclosed corners of science. Their aim was to inspire the audience, arouse their interest in science and motivate the participants to cognitive activities. We introduce the idea of the project in detail concentrating mainly on informatics realized by the Department of Informatics.