Band 6.5 IELTS Writing Task 2 Model Answer

Overall Band Score: 6.5 · Cambridge IELTS 18 · 2026-10-02

IELTS Writing Task 2 question

The most important aim of science should be to improve people’s lives. To what extent do you agree or disagree with this statement? Give reasons for your answers and include any relevant examples from your own knowledge or experience.

 

Student answer (Band 6.5)

Science has grown significantly in the past few centuries and has improved people's lives a lot in major aspects of life. I partially agree that the most important aim of science should only be to improve people’s lives because science has answers for every problem which are crucial for improving people's lives but sometimes the aim of scientific developments may not be directly to improve people's lives.

In recent decades, many scientific advancements have completely eradicated numerous human problems. For example, communication science and radio-communication have made it possible to exchange any information across the globe in a blink of an eye. The aerospace advancements in the early 20th century made air travel possible and because of that it is possible to reach any destination within a few hours, nowadays. Many fatal diseases are now curable due to the significant discoveries made by scientists and researchers in the healthcare domain.

Many scientific efforts and investments for ambitious projects made in the past didn't have a direct aim to improve people’s lives such as the Apollo missions on the moon by NASA or the development of nuclear warheads. However, they have indirectly solved many equations and theories that have proved significantly helpful in other scientific domains. For example, because of advanced research on nuclear energy to build defence equipment, engineers and scientists are able to make nuclear power plants which can generate a substantial amount of clean energy. The experience achieved by NASA in the Apollo missions helped it to launch modern satellites successfully and efficiently using the same rockets and propellers.

To summarise, a lot of scientific experiments can directly make people’s lives better, while some scientific projects may not have a direct aim to improve people’s lives but eventually they do the same in an indirect way in the long term.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

The response addresses all parts of the task and establishes a clear position throughout, stating that while many scientific advancements directly improve human lives, others do so indirectly over the long term. Main ideas are relevant, such as communication science, healthcare, and space exploration. However, the development of these ideas is somewhat uneven. For example, while the discussion on indirect benefits stemming from the Apollo missions or nuclear research is adequately extended with examples like clean energy and modern satellites, the initial examples in the second paragraph remain rather brief and rely on general assertions without deep elaboration. To reach a higher band, all main points would need to be thoroughly extended and supported with greater depth of analysis throughout every body paragraph.

Coherence and Cohesion: Band 6.5

The essay presents a coherent overall arrangement with a clear progression of ideas from direct impacts to indirect benefits, culminating in a logical summary. Paragraphing is used appropriately to separate distinct themes. Cohesive devices are employed to link ideas, such as 'For example', 'However', and 'To summarise', though some of the transitional phrases and referencing feel slightly mechanical or repetitive in structure. Pronoun referencing is generally clear, but smoother integration of cohesive ties between sentences would elevate the flow of the writing. To move further up the scale, the management of cohesion could be made more flexible and unobtrusive, ensuring seamless transitions across all sections of the text.

Lexical Resource: Band 6.0

The student uses an adequate range of vocabulary for the task, successfully incorporating topic-specific terms such as 'scientific advancements', 'eradicated', 'healthcare domain', and 'nuclear power plants'. There are successful attempts to use less common vocabulary, though this is occasionally accompanied by slight inaccuracies in word choice or collocation, such as 'exchange any information across the globe in a blink of an eye', which leans towards informal idiom rather than academic precision. Spelling and word formation are generally accurate, and errors do not impede communication. To achieve a higher band, a wider and more sophisticated range of flexible vocabulary and precise collocations needs to be sustained more consistently throughout the response.

Grammatical Range and Accuracy: Band 6.5

The essay demonstrates a mix of simple and complex sentence forms, successfully handling structures such as relative clauses and conditional-like constructions, as seen in 'science has answers for every problem which are crucial for improving people's lives'. There are some errors in grammar and punctuation, such as missing articles ('on the moon' versus 'to the moon' or minor prepositions) and slight run-on tendencies in complex sentences, but these errors are infrequent and rarely impede communication. The majority of simple sentences are error-free. To progress to a higher band, the writer would need to demonstrate a wider variety of complex structures with more frequent error-free sentences and tighter control over punctuation.

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

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.