poison and giddy - my dd also sat the same B7 as yours. She said there was a graph and something to do with the harvest cycle - this isn't something they've studied and she doesn't think was on the specification she had.
Bring & Gnome - good luck to your DCs for their exams this afternoon.
DD will do some revision here for chemistry and physics, but I feel the pressure is off now (if only for me). She needs six Bs, ideally As in the subjects she wants to do at A level and she doesn't want to continue with either of these.
To all those moving away from this thread, hope you have a great summer.