These thematic pictures of Прырода are analogous to a visual dictionary. The theme "Прырода" splits into several parts. For children, especially toddlers from 1 to 5 years old, it is better to divide the sets of cards over several days, or even weeks, so the information is absorbed better. Especially it is true if you are using flashcards to learn the belarusian language, which is not your native language.
To expand your belarusian language vocabulary on the "Прырода" topic, flashcards games are the best way: