My advice is know your geography and sharpen up your science. It helps a lot to keep up with the news especially with updates on medicine or science related. Like if there's something on global warming read that. If some company is experimenting with CRISPR do some research. The best way to ace the exam is to have a strong foundation of knowledge. Me personally I was cramming some science revision last minute for the JMSS exam, I was studying on the day of 🙁 but I got an interview because of my prior knowledge. The science reasoning had 30 ques for 30 min and the difficulty wasn't too bad in my opinion.
For Maths and NR, revise consistently. There were 60 ques 30 min and you don't get time to breathe. Practice speed and make sure you have a good base for maths too. The amount of questions seem intimidating but they don't go too deep, it's mostly speed. Don't put off studying and do the edutest practice tests. I ended up buying 6 because I also sat the year 10 entrance to mghs. I did a couple of the year 9 ones but they tend to be easy so try the year 10s for a challenge. If you run out try the year 11 ones too. Don't be intimidated by the grade. The NR tends to be not too hard.
Don't be nervous on the exam day the JMSS Staff are really nice and just be prepared.
