She (if we are talking about DC) is a He, btw.
This has already had some discussion on MN.
A few general comments. The board discussed is AQA and this is not the only examination board, so you cannot say that the exact comments hold tru for all the other boards as the differ.
The examples may well have been taken from the Foundation paper, which limits a child to a maximum of a Grade C, and tends to be given to kids who are less scientifically able.
There are concerns about the new curriculum, in all three of the sciences. But there were also concerns about he old GCSE, which were far from perfect.
Changes will shortly be made to the KS3 curriculum, and I have been tipped the wink that it is conseiderably shorter in terms of factual content than the old one. Which, if we are allowed to teach the children scientific method, and higher order critical skills, would be a distinct improvement over cramming 'facts' into them.