Homework for Wednesday 18th September

Continue your best draft of the method for testing water for hardness and for testing for dissolved solids. Remember this should be written so that all you have to do next year is to copy it into the Coursework B examination booklet. It will be marked as if it is your final copy and if it is not good enough you will be told to rewrite it properly. If you need help, use the documents on Marking Coursework A, your text book or your purple Coursework A booklet. You can also use the online help option if you are completely stuck !