Your work should have an introduction and a risk assessment followed by a reasonably detailed method perhaps with diagrams. Tabulated expected results and the use of some sort of data log should be included. You should use at least two different sources which have to be credited. b) A brief investigation into the uses of esters in commerce (pharmaceutical, industrial food etc) and how these may be tested in a research lab for their purity. Again at least two different sources which have to be credited. This should be word processed.