Band 5.0 IELTS Writing Task 2 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 18 · 2026-11-12

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 5.0)

The most important aim of science should be to improve people's lives. I agree with this statement because when people's lives are improved, others development such as betterment of society or health of human comes with it.

Although, science helps us to have better understanding of life and is the reason we know so much about the world but its main purpose should be to improve people's lives because when a human is healthy, its body organs are healthy. Its brain then work in developing new ideas. Such human can be a reason for developing new ideas and new techniques for the betterment of human beings and Earth. The science helps human body to stay healthy by researching on the nutrients which are essential for human beings. Science even tells the extact quantity of nutrients which are needed by our body to grow and to stay healthy.

Science even research on which fruits are needed by our body as a source of nutrients and which are not. They also tell which fruits increase colestrol and which does not. It is same for the vegetables. They tell exact about of nutrients like iron in vegetables and other those which add starch in our body. Science has also told us about the moderate amount of temperature needed by our body. Because our body can not cope with extremely low or high temperatures. It is all thanks to science we know what is needed for our body and what is not.

In my conclusion, the most important aim of science should be to improve people's lives because a healthy brain and a healthy body can result in so many achievements in life and be a cause of our success in life.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

Your position is clear: you agree that improving people’s lives should be science’s main aim, and you give relevant examples involving nutrition, health and temperature. However, the response addresses the question only partially because most of the discussion focuses on physical health, while the broader claim about science’s aims is not explored in depth. The opening mentions better society and health, and you briefly acknowledge that science also helps us understand the world, but you do not explain how these aims compare or why improving lives should take priority. The examples are also asserted rather than developed—for instance, the points about fruit and cholesterol could be linked more clearly to a specific benefit. Explain your reasoning and support fewer examples more fully.

Coherence and Cohesion: Band 5.0

The response has an identifiable beginning, a sequence of supporting paragraphs and a conclusion, so the reader can follow its general topic. However, there is not a clear overall progression: the body moves from healthy organs and ideas to nutrients, fruit, vegetables and temperature, with several points repeating the claim that science tells us what the body needs. Linking phrases such as “Although” and “It is all thanks to science” are used, but the first introduces a contrast that is not completed smoothly, and connections between examples are often unclear. The conclusion restates the position rather than drawing together the main reasoning. Organise the body around distinct reasons, and use clear references and transitions to show how each example supports the argument.

Lexical Resource: Band 5.0

You use enough topic-related vocabulary to communicate the general argument, including “nutrients,” “temperature,” “healthy” and “developing new ideas.” However, the range is limited and several words or phrases are repeated, particularly “science,” “body,” “healthy” and “betterment.” Some choices are inaccurate or unnatural, such as “others development,” “exact about of nutrients” and “increase colestrol,” which can make the reader pause. Spelling errors such as “extact” and “colestrol” also reduce accuracy. Aim for more precise expressions and vary repeated terms; for example, explain that research identifies nutritional requirements or helps prevent health problems. Check spelling and collocations carefully when editing.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and longer sentences, including a conditional idea in “when a human is healthy” and a contrast introduced by “Although.” However, complex sentences are often faulty, and frequent errors sometimes make the relationships between ideas difficult to follow. Examples include “its brain then work,” where the verb does not agree with the subject, and “They also tell which fruits increase … and which does not,” where the clause structure and agreement are inconsistent. The opening “Although” clause is not joined correctly to the main clause, and “Science even research” also has a subject–verb agreement error. Practise building complete sentences with one clear main clause, then check agreement, pronouns and punctuation.

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