The Encyclopedia of a Young Naturalist consists of two sections: general concepts and personal names.

The first section includes terms in the fields of geography, astronomy, biology, chemistry and physics with their English and Russian equivalents, the second section includes brief biographies of the greatest scientists in the mentioned fields.

Materials and symbolic concepts related to Armenia and Armenians have been added to the encyclopedia as much as possible: Mount Ararat, Metsamor Historical and Cultural Reserve-Museum, apricots, plane trees, etc., which are important in terms of children's knowledge of their native land.