Band 6.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 6.0 · IELTS Complete Catalyst · 2026-10-11
IELTS Writing Task 1 question
The diagram below shows the process for making a water clock.
Write a report for a university lecturer describing the information below.
HOW TO BUILD YOUR OWN WATER CLOCK
Student answer (Band 6.0)
The diagram demonstrates the process of creating a water clock. The process consists on seven fundamental stages and requires several objects such as glue, straw, stand and more.
To make this clock, we need two plastic bottles which have to be placed on a stand. The first bottle will be placed at the top and tied with tape, then we need to cut a bottle from top and attach a straw to avoid water overflow and have to make hole on bottlem surface of bottle. The second bottle will be placed at the bottom with neck cut off and scalling on it.
First of all, we need to turn on the tap to fill the top bottle till it overflow through straw and cover the bottle hole with finger. After that wait till the water level get constant, when its done, then away finger from the hole. The water drops drop by drop from top bottle to bottom bottle. The bottom bottle has the scalling of levels per minute which will help to record timings. Finally, we can empty bottles and repeat the process
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 6.0 |
| Coherence and Cohesion | 6.0 |
| Lexical Resource | 5.5 |
| Grammatical Range and Accuracy | 5.5 |
| Overall | 6.0 |
Task Achievement / Task Response: Band 6.0
The report covers both the construction and operating sequence, and it identifies the main components: two bottles, a stand, tape, a straw and a hole in the upper bottle. The stages are also broadly represented, including filling until overflow, allowing the water level to settle, releasing the hole and repeating the process. Some details, however, are unclear or not fully accurate: the diagram says to cover the hole before filling the upper bottle, whereas your account places filling first. The straw is described as preventing overflow, but it functions as an overflow outlet. The calibration marks are also presented as “levels per minute,” rather than explaining that they indicate the water level over time. Clarifying these points and giving a more precise overview would strengthen the report.
Coherence and Cohesion: Band 6.0
The response has a generally sensible order: it introduces the apparatus, describes how it is assembled, and then explains how it is used. Sequencing phrases such as “First of all,” “After that” and “Finally” help the reader follow the process. However, the construction and operating instructions are not always clearly separated, and some links make the sequence confusing. For example, “fill the top bottle till it overflow through straw and cover the bottle hole with finger” reverses the diagram’s order, while “when its done, then away finger” is difficult to follow. Use one paragraph for the equipment and setup and another for the numbered operation, with clear references such as “once the water level has stabilised” to make the progression more precise.
Lexical Resource: Band 5.5
You use relevant process vocabulary, including “attached,” “overflow,” “drops” and “repeat,” and the reader can generally understand the equipment and actions. However, several word choices and collocations are imprecise or awkward, such as “tied with tape,” “avoid water overflow,” “scalling” and “the water drops drop by drop.” Spelling errors in “scalling” and “bottlem” also reduce accuracy. Aim for more precise terms for the apparatus and its function, and check spelling carefully. For instance, describe the straw as an overflow outlet and the marks as calibration lines. This would make the vocabulary more natural and specific to a process report while retaining the clear, accessible style you already use.
Grammatical Range and Accuracy: Band 5.5
The response includes both simple statements and longer sentences with time clauses, as in “After that wait till the water level get constant.” This shows an attempt to vary sentence structure, and the overall meaning is usually recoverable. Some grammatical errors remain, particularly with verb forms, articles and sentence construction. Examples include “consists on seven” (the correct pattern is “consists of”), “the water level get constant” and “when its done, then away finger from the hole.” The final instruction also needs a complete clause, such as “Finally, empty the bottles and repeat the process.” Review subject–verb agreement, use of articles, and complete imperative or passive constructions. More accurate control of these patterns would make the instructions easier to read.
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