As usual, the Chemistry Exhibition produced fire, smoke, colored solutions, explosions and other chemical experiments that visitors could try themselves. A special chemical “candy” was the theater play Taming of the Wicked Acid, the protagonists of which were members of the chemistry department (not only the “guide actors”, but also other academics of the chemistry department, including students of this field). The chemistry theater was again a great success.

This year, in addition to teaching about the so-called golden ratio (for example, in photography, about the ideal proportions between different lengths), the mathematics section this year offered many interactive exhibitions, where everyone could try, for example, symmetry (not only) in mathematics, optical illusions, geometric solids, folding origami or making a kaleidoscope. In addition, there were interesting things about music in connection with mathematics, for example, the arrangement of sequences in music. And as in previous years, in this section there were competitions and various mathematical games.

For this year, the Department of Biology and Ecology has prepared a series of short lectures on interesting topics from the fields of zoology and botany. The lectures include demonstrations of live specimens, microscopic preparations, photographs and videos. All of this is complemented by games and quizzes for young and old visitors.

The physics department conducts computer-assisted experiments, demonstration experiments of electromagnetic fields, and simple experiments in mechanics and hydro and aerostatics.

The Department of Physical Geography and Geoecology allows visitors to become surveyors for a moment thanks to an interactive demonstration of geodetic technology with the possibility of making their own measurements, as well as providing information to interested parties regarding the slope gradient.

The Department of Social Geography and Regional Development carries out three socialization activities: the first, the most popular, aims to introduce foreign foods that are not usually found in the Czech Republic. Visitors are tasked with tasting prepared dishes and then using a map to determine which region the dish originates from. This is followed by a brief explanation of each delicacy and its region.

In another station, the development of the center of Ostrava is presented on a large-format map. Here, visitors can put together a puzzle with the shape of the main city districts in 1832, 1954 and 2011, or discover the development of individual places, the most interesting of which are the Nové Karolina area, Stodolní Street, Slezská Ostrava or Fifejd. The activities are also accompanied by scientific comments.

The third activity offers the opportunity to get to know new technologies in a fun way, where visitors can test their geography knowledge on tablets in competitions with geography students or challenge their friends to a duel.

Despite the rather gloomy weather, the event was a success, around two thousand visitors came and the whole day was bright and colorful thanks to the varied events.

The event was held as part of the OPVK project “The world of science – mysterious and exciting” (project registration number CZ.1.07/2.3.00/35.0053), which is co-financed by the European Social Fund and the state budget of the Czech Republic.