If those are %, she will be a long way off a C. The numbers I have give are out of 72.
Is she doing separate Physics, Chemistry, Biology or Science and Additional Science?
If she is doing separate sciences, these numbers will be added onto her Y11 modules. If she is doing Science/Additional Science each year is stand alone. This means that she would have all her Y10 grades already, and should know exactly what grade she has, and what resits she needs to do (if any) to get a C.
It's important to speak to the school so that she can be sure of getting the C. It is a very important qualification, and it would be a shame if she missed out for the sake of a few marks.
(disclaimer: I teach the Edexcel course, but I think the structure and awarding of marks is the same as AQA).