<p>Students’ understanding of the nature of science (NOS) is typically naïve. As such, it is important to introduce students explicitly and often to NOS in the classroom, but also in science educational videos, as students use these videos increasingly to study. However, it is unclear to what extent NOS is present in these videos. As such, this study examines the NOS in science educational videos on YouTube. Videos were selected for three content topics (mitosis, vaccines, and nucleosynthesis) and from periods before, during, and after the COVID-19 pandemic. The videos were transcribed and deductively coded for NOS based on Lederman’s conceptualization of NOS. The results showed that NOS is typically not discussed in the videos, and when it is present, it is typically presented in a partially informed manner. Additionally, while COVID-19 did not significantly impact the overall inclusion of NOS, it did influence certain aspects. We suggest a more informed and explicit incorporation of NOS in educational videos to also introduce NOS to students (and other viewers) in informal and nonformal learning.</p>