If there is a clash between two subjects because they are timetabled for the same day and time, you will take one exam after another. The Edexcel exam will take place first, then the Cambridge exam. If you have only the Cambridge exam, you will have supervised study with books but no internet connection until the exam starts . Information about exam times will be shared.

I have two morning exams, how does that work? 

You will do the exams one after the other with a supervised break, in the exam room, in between. 

You will not be able to use a device. 

You may look at books during centre supervision. 

You may only leave the room, accompanied by an invigilator, one at a time. 

You may have a snack, if you wish.