Geography Unit 2Watch
And as rdlewiss said, flashcards are really useful for quick access to main points, such as diurnal temp ranges of deserts and drawing diagrams on formations of landmasses etc...
Hope this helped!
I got an A* in all my geography papers for my mocks, by just making revision cards for each case study and browsing over content. We have been given booklets saying what case studies we need and exactly what we need to know about each, I can send it to you if it would help? I just made revision cards from them, and briefly revised the content. Hope this helps