Duration – 5 hours. Approximate number of tasks – 3, including the implementation of a short research work. Adapted research papers/articles are often used as the assignments. The participants are supposed to be able to measure, process series of observations and other data, work with images, graphs, tables. It is possible to use digital devices. "Text volume" should be minimal and easy to read and understand. The tasks are paper-printed (in the form of files and software in exceptional cases only). The solutions are checked by the Olympiad jury and are subject to moderation.