Hi! I’m a year 13 student but I also applied to chemistry. For my PS, I listed a lot of super curricular activities I’ve participated in, which made up quite a bit of my PS, and I’d recommend taking part in some of those! Super curriculars could vary from extra reading to science events you’ve attended. For example, I competed in some science competitions and went to a few lectures about chemistry, all of which I included!
I feel like things related to science are much more enticing to uni’s than work experience (unless it’s science related) because it shows that you’re passionate. For my PS, my job in fast food had about one line and honestly didn’t add much compared to my super curriculars 😊