Last year, I got a D in my GCSE science and I did Edexcel. I'm not that good at Science, but I find the Edexcel GCSE board is a lot more easier. I got a D on my mocks in AQA and I find the AQA GCSE papers are much more boring. My teacher said that he could try and check if I can do the edexcel paper even though the whole class is doing AQA. How would you revise for Additional Science GCSE? Also I want to do Higher and I want a B.