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.
Sample Response
The given illustration shows the acidity levelsdemonstrates the acid level, that different sweet foods createwhich is the inverse of the pH values, different sweet foods can create in our mouth and their possible implicationsimplication for our dental health. As is given in the line graph, high acid levels are measured by the low pH level in our mouth and the lower the pH level, it is more likely to decay the tooth. According to the line graph, fruit sugar, cane sugar and honey cause, different acid levels in our mouth and their impacts last for five to 30 minutes. AThe pH level below 5.5 is harmful to our teethis detrimental to our tooth. When we consume honey, the pH level of our mouth falls belowdecreases to below 5.5 within 4 minutes and itthat takes around 13 minutes to rise above the danger thresholdcome out from the danger level. In the case of fruit sugar, the pH level goes below 5.5 in 3.5 minutes and remains in the danger zone until about 20 minutesremains in danger level for about 20 minutes. Finally, when we eat cane sugar, the pH level of our mouth enters the danger zonegoes in the danger level in 2.5 minutes and remains in the danger zone until about 33 minutesremains in danger level for about 32 minutes. In short, honey poses the lowest riskhoney is the safest sweet food for our dental health while cane sugar is the most detrimentalcane sugar is most detrimental to our tooth as it is likely to cause the greatest risk of tooth decaymaximum decay in our tooth.
Why this response received Band 6.5
The response gives a clear overall comparison and correctly identifies honey as the least harmful and cane sugar as the most harmful option, supported by generally accurate danger-period estimates. Its main limitation is incomplete selection of visual detail, particularly the different minimum pH levels and recovery times, alongside recurring awkward phrasing. Prioritise a fuller comparison of the lowest points and return-to-neutral patterns while tightening article and preposition use.
IELTS Writing Criteria Scores
Task Achievement
A clear overview and mostly accurate comparisons cover the principal dental-health implications, though the minima and full recovery patterns are omitted.
Compare the three lowest pH values and state when each line returns to the starting level.
Coherence and Cohesion
The information follows a sensible sequence from general interpretation to each sweetener, but the single dense paragraph and some repetitive linking weaken presentation.
Separate the overview from the detailed comparisons and group the three recovery patterns more explicitly.
Lexical Resource
Vocabulary is sufficiently varied for trends and consequences, although several collocations such as "decay the tooth" are imprecise.
Use natural combinations such as "cause tooth decay," "fall below the threshold," and "remain in the danger zone."
Grammatical Range and Accuracy
A range of sentence forms is attempted, and meaning remains clear despite recurring article, preposition, agreement, and clause-structure errors.
Review comparative clauses and article-preposition choices, especially in phrases describing levels and durations.
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IELTS Academic Writing Task 1
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.
Your response
Write the task yourself, then compare your choices with the annotated response.