Read the sample answer of process diagram on the topic: Bricks manufacturing.
The diagram below shows how bricks are made using clay in a factory.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Introduction
The diagram illustrates the manufacturing process of bricks using clay.
Overview:
It is clear from the diagram that there are nine main steps in the process from digging of the raw clay to the transportation of the bricks.
Body Paragraph:
Firstly, the clay is dug out of the ground. It is next put on a metal grid and rolled. Sand and water are added and the mixture is then either cut or moulded into the correct brick shape. After this, the bricks are placed in an oven to dry over a period of one to two days. Once dried, they are put into a kiln to be baked. The baking starts at a medium heat, between 200 and 980°C, and then at a higher temperature of up to 1300°C. Afterwards, the bricks are cooled, a process which takes between one and three days. At this stage, the bricks are ready and are packaged and finally loaded onto a lorry to be delivered to the construction industry.
Band Score Analysis 7.0:
Task Response (Band 7.5 – 8.5)
- The response fully addresses the task by describing all major stages of the brick-making process in a clear and logical sequence.
- The overview correctly summarizes the main steps of the process.
- The body paragraph provides detailed explanations for each stage, using appropriate sequencing.
Grammar (Band 7.5 – 8.5)
- The grammar is accurate and varied, with correct use of passive voice (e.g., “is dug out,” “is placed,” “are packaged”), which is appropriate for process descriptions.
- Tense consistency is well maintained throughout.
Vocabulary (Band 7.5 – 8.5)
- The response uses a good range of vocabulary for process description (“manufacturing process,” “placed in an oven to dry,” “loaded onto a lorry for delivery”).
- Sequencing phrases (“Firstly,” “Afterwards,” “At this stage”) contribute to logical flow.
Coherence & Cohesion (Band 7.5 – 8.0)
- The description follows a logical structure, moving smoothly through each step in chronological order.
- Linking words and cohesive devices are used effectively (“after this,” “once dried,” “at this stage”).
Click here to red more sample answers. Read this article for more tips on the IELTS writing task 1 process diagram type question.