“…A notable case is the use of masks, which was advised only for patients at risk (Bruemmer, 2020 ). At the same time, we consider the importance of discussing the advances and setbacks of science, since several studies show that, in general, students and teachers do not usually have adequate conceptions of the nature of science, attributing to it ahistoricity, neutrality, infallibility, invariability over time, among others (Fernández et al, 2002 ; Lederman, 1992 , 2006 ). Particularly, highlighting that, although scientific knowledge has a provisional character, we have great principles in force within the Natural Sciences (González Galli, 2019 ).…”