Eating sweet foods produces acid in the mouth, which can cause tooth decay. (High acid levels are measured by low pH values) Describe the information below and discuss the implications for dental health.
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Sample Response
The graph provides a breakdown of pH levels in the mouthacid level in the mouth from the moment of consumption to 40 minutes after the initial intake of sweet foods, namely fruit sugar, cane sugar and honey.
Overall, the acid level reported a sharp drop in acid level over the forty-minute period. Acid level from PH 3 to nearly PH 5.5 there is a high chancechange of tooth decay, but after PH 5.5 tooth decay becomes unlikely to happen.
The pH level was at its neutral baseline of 7 (lowest acidity)Acid level was at its highest, at a PH 7 , the moment after the sweet food consumption. The PH level reached its lowest point within 5 minutes ofstarted to drop 5 minutes after eating the food. In addition, cane sugarthe cane sugar reported the sharpest decrease from PH 7 to approximately pH 3.5, whichapproximately PH 3.5 , which was followed by the fruit sugar at nearly PH 4.2 and honey atthe honey at roughly PH 4.9. Between 5 and 10 minutes after eating honey, the pH leveleating the honey, the PH level remained stable. As for both cane sugar and fruit sugarthe cane and the fruit sugar, the level started to rise after 5 minutes, which was followed by the honey after 10 minutes.
Furthermore, 25 minutes after honey intakethe honey intake, PH level returned to its neutral baseline of pH 7rebounded to its peak, to PH 7. As for the fruit sugar, its level continued to rise steadilymarginally, before reaching PH 7 after 35 minutes. Lastly, cane sugar took no less than 40 minutes to get to PH 7.
Why this response received Band 6.0
The essay effectively covers the key trends and data points from the visual prompt, presenting a clear overall progression. However, minor inaccuracies in describing the inverse relationship between pH values and acidity levels detract from full clarity. To improve, ensure precise technical phrasing when describing inverse scales and refine sentence structures to eliminate minor grammatical fragments.
IELTS Writing Criteria Scores
Task Achievement
Key features and data points are highlighted, but the distinction between pH value and acidity level is slightly confused in the overview.
Ensure precise descriptions of data, explicitly clarifying that a drop in pH value represents an increase in acidity.
Coherence and Cohesion
Information is organized logically across paragraphs, though some cohesive transitions feel slightly repetitive.
Vary linking expressions beyond repetitive structures like 'as for' and 'which was followed by'.
Lexical Resource
A good range of trend vocabulary is used, though word choice errors such as 'high change' instead of 'high chance' occasionally occur.
Focus on precise word partnerships and correct vocabulary collocations related to probability and trends.
Grammatical Range and Accuracy
A mix of simple and complex sentences is attempted, though structural errors and awkward phrasing appear in key descriptive sentences.
Proofread for complete clause structures to prevent sentence fragments like those seen in the overview.