City of London School for Girls 16+

I'm currently in Y11 and have applied for the 16+ admissions test which i have on the 15th of October. I'm not quite sure on how to revise for the test. I will have the maths and a critical thinking skills test. I wanna know what the critical thinking test is like cos i've never heard that before and don't know how to revise for it so i'm stressing out. Has anyone done the test who can advise me on how to revise and say how the test is like??

Hiii. Sorry I don’t have an answer to the question. But I’m also applying and also have the tests next week. The school says we’ll take several written tests. So do you think I’ll be tested on bio and chem?