Important Hanja: 화 (化) (한자) | Korean FAQ
This lesson is all about the Hanja 화, which is written as 化 and means "change." There are many words that come from Hanja and use this, such as 변화 and 화학, but also there are other uses for it at the end of words.
Also let me know if you'd like to see more of these Hanja episodes. I can of course keep making more, as there are plenty of Hanja I haven't yet covered.