Abstract
The curriculum content is one of the basic educational categories; however its definition is far from being unambiguous. The meaning of the concept 'curriculum content' or 'curriculum' changes in relation to the changes in the educational content, which is generally understood as a tool cultivating the human, reflecting the level of knowledge and social experience, and ensuring the integrity and continuity of society development.
It is determined by social functions and educational aims. Didactic transformation gives the educational content a concrete form - the curriculum.
Therefore, based on the above, a contemporary concept of curriculum includes a complex of knowledge, skills, abilities, attitudes, and interests, which the pupil/student should acquire in the teaching process. The present paper will try to find the answers to the question of how the curriculum content of science subjects should look like in the 21st century at the ISCED 2 level mainly in terms of the current demands put on science education.