Atoms glow in different colors, and this can be seen in the entrance to exciting experiments in a real laboratory. The masterclass for schoolchildren and their parents offers an immersion into the micro-world. Here, the instructor will explain why all atoms are colorful, talk about the spectrum, and why we do not see all existing electromagnetic waves. Participants will also get acquainted with the structure of prisms and diffraction gratings, on the basis of which various devices operate. During numerous spectacular experiments, they will see how different atoms glow. Substances placed in a heater will color the flame in different colors, which can be used to determine which metals are present in their composition. At the end, each guest will receive a gift of matches that burn with green flames. For more details, you can visit the official website. Photo provided by the organizer.