I wont be able to give you my work from last year as I have pretty much chucked them away. However, I can give you advice on Unit 4 and Unit 8. Make sure you follow the criteria, to the letter. Make sure you have answered every single question thoroughly in as much detail as possible. You should have made notes so far so use those. If not go on TES. This is a really useful website used by teachers to create and share resources. Type in what you need and see if anything comes up. Final bit of advise is to make sure you have researched everything thoroughly and to read articles from websites such as Futurism and the New Scientist or anything related to science. This should help polish your essays and assignments.Remember, you can't expect anyone to just simply hand over their work. You have to learn and critically think about what you are doing. This is how I managed to achieve a distinction in the first year and I'm on track for D*D*D for my second year.