Omg Need Help With Chem A2 Coursework!

I need a bit of help with my A2 coursework, or im gna fail sob :frown:

My board is OCR Salters and by 'coursework' i mean the individual investigation.
My investigation involved the sulphur-cross experiment but using light sensors to measure light through the solution rather than waiting for the cross to disappear...i also used a second method of measuring resistance through the solution over time.
I made up a lot of the results sob...coz it just wasnt workin but now im having heaps of trouble with the graphs and the rate of reaction equations.
Im sure sodium thiosulphate is supposed to be first order but my graph looks really odd...and anyone know wot HCl is supposed to be?
Please help if u can :smile: