This proposal concerns the organization of the 35th European Union Contest for Young Scientists (EUCYS), which will be held in Katowice, Poland, in September 2024. The European Union (EU) Contest for Young Scientists (EUCYS) is the most important student science fair in the EU, showcasing the best of student scientific achievement in the EU and beyond. Each year, the event brings together promising, talented students & bright young minds (14-20 years old) from all over Europe and beyond, to present their projects to a panel of international judges. The competition helps promote science and research, and draws attention to young talents in European and global countries. During the competition, young scientists have the opportunity to meet other participants with similar interests, confront their project with other young scientists' activities, and talk with the judges - the most prominent scientists in Europe. The EUCYS competition works to attract young people to careers in science and technology.