Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-09-16

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 5.0)

The given diagram illustrate that how electricity is produced by geothermal energy.

Overall it contain 5 different phases which started from cold water and ends on electricity produced and store in generators.

initially the cold water pumped down about 4.5 kilometers and then it reached to the second step which is injection well.The water suffered through hot rocks and then reached to third step and it is production well and it converted into hot water and then it pumped to the uper side. The water reached in condenser which is the fourth poin of whole process and then it converted into steam. Then in next phase the steam transferred into turbine which produce electricity and then finally it stored in generators which supply electricity through different ways.

The first and third step are contrats to each other in sense of pumping water and according to the temperature of the water.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The candidate attempts to cover the process of geothermal energy production shown in the diagram. An overview is attempted, stating there are five phases starting with cold water and ending with electricity stored in generators. However, the description contains several inaccuracies in sequence and terminology; for example, stating that the water reaches the injection well after being pumped down, and confusing the order of the condenser, turbine, and production well. The detail about the 4.5 km depth is correctly noted. Overall, the response addresses the task partially, but the flawed understanding of the sequence and process mechanics limits the development of the main features, placing this performance at Band 5.0.

Coherence and Cohesion — Band 5.0

The text lacks clear paragraphing, consisting almost entirely of a single block of text with minimal structure. While basic cohesive devices and sequencing words are used, such as 'initially', 'then', and 'finally', their application is mechanical and repetitive. The progression of ideas becomes difficult to follow due to run-on sentences and confusing transitional links between steps, such as 'The first and third step are contrats to each other'. The lack of logical grouping and paragraph breaks results in a Band 5.0 for coherence and cohesion.

Lexical Resource — Band 5.0

The vocabulary used is basic and repetitive, relying heavily on simple verbs and nouns directly lifted from the prompt, such as 'water', 'pumped', 'cold', and 'hot'. There are notable word-choice and collocation errors, such as 'the water suffered through hot rocks' instead of 'flows through' or 'passes through', and 'uper side' instead of 'surface'. While the vocabulary is minimally adequate to convey the basic topic, the frequent inaccuracies and lack of a wider lexical range restrict the score to Band 5.0.

Grammatical Range and Accuracy — Band 5.0

The response displays a very limited range of grammatical structures. Simple sentences dominate, and attempts at complex or passive forms are frequently faulty or awkward, such as 'The given diagram illustrate that how electricity is produced' (error in clause structure and verb agreement) and 'it convert into steam' (missing passive voice). Punctuation errors are also present, including missing capitalisation at the start of sentences and missing commas. Frequent errors in basic grammar cause occasional strain for the reader, fitting the Band 5.0 descriptor.

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

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