In 2017, a questionnaire dedicated to secondary school chemistry and biology teachers was created and realized via Google docs platform. This questionnaire investigated the state of teaching of digestion in human body at secondary schools.
Firstly, according to the answers, this topic is interdisciplinary and should be taught mainly during biological and chemical lessons. Secondly, there is a need to promote the illustrative nature of the topic.
And last but not least, the relation between scientific knowledge and everyday life should be supported.