Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-08-20

IELTS Writing Task 1 question

The diagram below shows how geothermal energy is used to produce electricity.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 6.0)

The diagram illustrates about geothermal energy process in order to generate electricity.

To begin with, the initial stage of power plant starts with cold water, where the water is pumped downwards around 4.5km in the injection well. Now, it passes through Geothermal zone which has hot rocks, the rocks will rise the temperature so that the water gets hot and boils up.

Moreover, after that the hot water is pumped up through a production well which will later helps to transfer in condenser, which will converted into steam. The steam will work together with a turbine which rotates and creates power that supports the generator to produce electricity. It will now merge with tower, where every section gets power to run the machines of the tower.

In conclusion, technically it has total five major steps in order to work a Geothermal plant, where each steps depends on each other in a way that creates an electrical power.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main stages of the geothermal energy process, from the injection well to the generator. However, the description is somewhat mechanical and lacks a clear overview or summary of the process as a whole. While the key features are identified, the explanation of the 'condenser' and 'turbine' interaction is slightly inaccurate based on the provided diagram, as the diagram shows steam driving the turbine directly. To improve, ensure you provide a clear introductory overview that highlights the cyclical nature of the process and focus on accurately reporting the visual information rather than adding external assumptions.

Coherence and Cohesion — Band 6.0

The response is organized into logical paragraphs, which helps the reader follow the sequence of events. Cohesive devices such as 'To begin with', 'Moreover', and 'In conclusion' are used to link ideas. However, the transition between sentences is sometimes repetitive, and the referencing is occasionally unclear, such as in the phrase 'it will now merge with tower'. The flow could be improved by using a wider variety of linking words and ensuring that pronouns clearly refer back to the previously mentioned nouns to avoid ambiguity.

Lexical Resource — Band 6.0

The vocabulary is generally adequate for the task, allowing for a basic description of the process. You used some relevant technical terms like 'injection well', 'production well', and 'turbine'. However, there are some awkward collocations and word choices, such as 'illustrates about' (which should be 'illustrates the') and 'rocks will rise the temperature' (which should be 'raise the temperature'). To reach a higher band, try to incorporate more precise verbs and nouns related to technical processes, such as 'circulate', 'harness', or 'facilitate'.

Grammatical Range and Accuracy — Band 5.5

The response contains a mix of simple and complex sentence structures. There are several grammatical errors, such as 'which will later helps to transfer' (should be 'help to transfer') and 'which will converted into steam' (should be 'which is converted'). Additionally, there are issues with article usage and verb tense consistency. While these errors do not completely impede communication, they occur frequently enough to impact the overall fluency. Focusing on subject-verb agreement and the correct use of passive voice for process descriptions would significantly improve your score.

See this exact question answered at other band scores — the same prompt compared across bands.

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