In academic writing, you may be asked to explain how something works, such as a machine, a system, a process etc. This sample essay, describing how the ancient Roman aqueducts worked, shows you how to organize this type of process essay according to the correct, step-by-step order.
Explain how Rome’s ancient system of aqueducts worked. Give a step-by-step description, making sure to include the purpose and significance of the aqueduct system. Write an academic essay of approximately 500 words.