Science tutoring newbie - how do you plan your GCSE curriculum?

[Handbaghag]

Hi all
I have been tutoring a y11 student in Chemistry the past few weeks. He has no 'requests' so I've just been going with topics that seem to be the fundamental ones that are likely to come up - periodic table, bonding and properties, balancing equations etc. He now wants to do some physics, so again, I'm starting with KE/GPE calculations tomorrow etc. However, I'm very conscious that with only one lesson a week I may cover potentially few questions. How have others structured things - should I do past papers and whizz through all the topics that way in a mini focus? I feel the sessions are going well and he's definitely understanding the topics I'm doing better but I am worried I'll get through relatively little content. Any tips please? thanks