Band 4.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.5 · IELTS Complete Catalyst · 2026-11-11

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 4.5)

This diagram shows a process to make a water clock.Then we try to set a plastic bottle with tape.Then try to included straw and glue, which can be engaged with a stand. Firstly we should be tap on.Then try to cover the hole with Filling the bottle with a specific point.when its level constant then we should follow the next step.And then we try to finger away from hole its a 5th steps.6 steps we should follow where the pastic bottle neck cut off,we should be count where the levels per minute.when this process can be done then we should follow the next step which is the 7th step and the last one.In this step this process can be repeat.water clock process can be empty and repeted by the timing things ,which illustrate a overall water clock system that can be included minimum seven steps.when all types of step can be finished it will be repeated also ,so its a process a diagram.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

You identify the subject as a water-clock process and include several relevant stages, such as turning on the tap, covering the hole, allowing the water level to remain constant, and repeating the process for timing. However, the description only partially explains how the apparatus is assembled and how it works. The diagram shows an upper bottle fixed to a stand, a straw attached as an overflow drain, and a lower bottle with calibration marks; these key features are either unclear or omitted. Some stages are also misreported: the upper bottle is filled until water overflows, and the lower bottle’s levels are counted per minute. A clearer overview and a more accurate account of the equipment and sequence would make the report more complete.

Coherence and Cohesion: Band 4.0

The response follows the numbered stages in roughly the correct order, so the reader can recognise an attempt to describe a process. However, ideas are not arranged into clear sections, and the progression is difficult to follow because several steps are run together: “cover the hole with Filling the bottle” and “when its level constant then we should follow the next step.” Linking phrases such as “Firstly,” “And then,” and “when this process can be done” are repetitive and do not always show the relationship between stages accurately. The ending repeats that the process can be repeated without adding a clear summary. Group the equipment setup, operating stages, and final repetition into a logical sequence, using precise links between them.

Lexical Resource: Band 4.5

You use some task-related vocabulary, including “plastic bottle,” “tape,” “straw,” “stand,” and “levels per minute,” which helps identify the process. However, the range is limited and several choices are inaccurate or awkward, making parts of the description hard to understand. For example, “included straw and glue” does not clearly describe attaching the straw, while “engaged with a stand” is not a natural way to explain how the bottle is supported. “Finger away from hole” and “repeted by the timing things” also lack clear, appropriate phrasing. Use precise process vocabulary and check spelling, including “plastic,” “repeated,” and “illustrates.”

Grammatical Range and Accuracy: Band 4.5

The response attempts to connect ideas with clauses such as “when its level constant then we should follow the next step,” but sentence structures are limited and many attempts are faulty. Missing or incorrect verb forms appear in “we should be tap on” and “when its level constant”; the latter needs a verb such as “is.” Articles and sentence boundaries are also inconsistent, as in “its a 5th steps” and “6 steps we should follow where…” Several sentences run together without appropriate punctuation, including the opening “This diagram shows a process to make a water clock.Then…” These errors frequently make the sequence difficult to interpret. Practise accurate simple sentences first, then combine stages using correctly formed time clauses.

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