The graph below shows the effects of different brands of fertilizer on bean plant growth.
Sample Response
The bar chartillustration gives data on the effects of four fertilizer brands and no fertilizerfive different fertilizers on the growth of bean plants. As can be seen from the given diagram, Granny’s Bloomers and K Mark fertilizers produce greater bean-plant growth thanhelp grow the bean plant more than other fertilizer brands. The column graph indicates that Granny’s Bloomers is the most effective fertilizercompost as it helps produce the tallest bean plantsgrow the bean plant the highest, which is about 27 centimetres28 centimeters. The average height of bean plants is 22 cm when K Mark fertilizer is applied. The average height of plants treated withThe growth of bean plants from Job’s House Plant Spikers fertilizer is about 16 cm on averageon an average. Interestingly, bean plants’ height goes as high as about 13 cm12 cm without any fertilizer being used, whichbeing used which is almost double the heightdouble that the height bean plants gain from Miracle Gro fertilizer.
In summary, in terms of the effectiveness in promotingefficiency on bean plants’ growth, Granny’s Bloomers is the best fertilizer while Miracle Gro is the least effective fertilizerso far the worst fertilizer. Natural growth of bean plants is higher than the height achieved with Miracle Grothe effects of Miracle Gro but less than the growth of bean plants with the utilization of Job’s House Plant Spikers fertilizer.
Why this response received Band 7.0
The response's strongest feature is its clear ranking of treatments and coverage of every bar, including the useful comparison between natural growth, Miracle Gro, and Job's House Plant Spikers. Its main weakness is recurring imprecise wording and malformed comparison structures, while several figures are approximated one centimetre away from the chart; the highest priority is to report the five values consistently and express comparisons with clean, precise chart language.
IELTS Writing Criteria Scores
Task Achievement
The response gives a clear overall ranking and covers all five conditions, with the main figures and comparisons broadly matching the chart despite several one-centimetre approximations.
Report the bars as about 27, 15, 6, 22, and 13 cm, and identify the unfertilised plant as a control rather than a fifth fertilizer.
Coherence and Cohesion
The report moves logically from an introduction and overview to figures and a concluding comparison, though the final summary partly repeats the opening overview.
Place one concise overview after the introduction, then group the detailed comparisons from highest to lowest.
Lexical Resource
There is adequate range for describing averages and comparisons, but collocations such as 'grow the bean plant the highest' and 'efficiency on growth' are imprecise.
Use accurate chart language such as 'produced the tallest plants', 'average height', and 'effect on growth'.
Grammatical Range and Accuracy
A mix of simple and complex structures is used, but article, comparison, and clause errors recur, especially in the sentence comparing unfertilised plants with Miracle Gro.
Practise complete comparative structures such as 'nearly twice the height produced by Miracle Gro' and check articles around singular count nouns.
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IELTS Academic Writing Task 1
The graph below shows the effects of different brands of fertilizer on bean plant growth.
Your response
Write the task yourself, then compare your choices with the annotated response.