How much revision for GCSEsWatch
Some people bust out five hours a day or more in the run-up to GCSEs, some don't. You should revise enough so that you know you're understanding what you're learning and you're able to answer questions correctly.
If you're in year 10 then this just amounts to paying attention in class and doing your homework.
Personally I was a lazy f**k right up until after my GCSE mocks but I do not recommend this to everyone.