go over all your notes lightly, but ignore areas like the production of ethanol and all those research dot points. Look at stuff involving drawing and making structures, youll be asked to do this with molymods. Also in my prac test they asked us about the structure of cellulose and the dehydration of ethanol in the molymods sections, everyone in the grade pretty much got it wrong, because they wanted us to be really detailed.
so detail is very important in practical exams.
Also read what they want you to do carefully, I was asked to make colour change observations and use them to answer the questions, But i just did the colour change and hence could not answer the question
Therefore, the questions are heavily connected to the pracs you are performing, so all in all just write in detail, answer the question and dont be nervous, prac tests are mostly luck.