This Study Guide and Revision Checklist narrows down exactly what you need to learn for the Edexcel iGCSE Science exam.
If you are doing doubles, you will only take one paper for Biology, one paper for Chemistry and one paper for Physics so you can stick to the stuff that is not in bold.
If you are doing triples, you need to look at both the items in regular lettering as well as the bold items (but the bold stuff will only be examined in paper 2 along with the other stuff)
There is no Foundation/Higher paper in iGCSE.
Answers to all questions have been popped into my revision guide sets for you.