Band 4.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.5 · IELTS Complete Catalyst · 2026-10-08

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)

The given diagram illustrate information about the process for making a water clock.This process is works differents stages for a singal final product.Overall it can be seen that the process for making a water clock is carried out by following more then 7 distincitive parts.Additionally the process start the tap on and ends of emptyand report process for timing things.Furthermore,All steps are very important and are connected with each other.Talking about the initial steps,First step is open the null and fill ups the bottle.Then comes to the adjust the bottel and fill top bottle to overflow.And then comes the process the bottle level is constent and the finger away from hole.Water level check per minute and empty report process for timing things.The plastic bottle check cut off because the not overflow and the water level not disturb.Every bottle the water level is equal.

AI examiner evaluation

Task Achievement / Task Response: Band 4.0

The response identifies the general subject and attempts to describe a sequence, including filling the upper bottle, water passing through a hole, and repeating the process. However, the account only minimally covers the diagram and several stages are misreported or unclear: “open the null” does not accurately describe turning on the tap, and the calibration marks on the lower bottle are confused with checking the water level “per minute.” The apparatus itself is barely described, so key features such as the stand, overflow straw, and lower bottle are missing. The overview is also vague rather than summarising how the clock works. The response is 143 words, below the required 150, which further limits its coverage. Describe the setup and stages accurately and include the purpose of the markings.

Coherence and Cohesion: Band 4.5

There is an attempt to organise the report with an opening, an overview beginning “Overall,” and a sequence introduced by “Talking about the initial steps.” Some sequencing language, such as “First,” “Then,” and “And then,” helps show that the process has stages. However, the response is difficult to follow because ideas are crowded into one paragraph and the sequence is not consistently clear. For example, “adjust the bottel” and “the bottle level is constent and the finger away from hole” do not make the relationship between actions clear. Linking words are repetitive, and “Furthermore” introduces no distinct point. Use separate paragraphs for the overview and stages, and connect each step in the diagram in its correct order.

Lexical Resource: Band 5.0

The response uses some task-related vocabulary, including “process,” “bottle,” “water level,” “overflow,” and “hole,” so the reader can recognise the general topic. However, the range is limited and several inaccurate or misspelled expressions make meaning difficult to recover. Examples include “singal,” “distincitive,” “constent,” and “emptyand”; phrases such as “empty report process” and “open the null” are also not appropriate descriptions of the diagram. Repetition of “bottle” and “process” further restricts the report. Aim for precise process vocabulary and check spelling and collocations. Useful terms include “attach,” “overflow straw,” “calibration mark,” and “drip,” which would help describe the equipment and its function more clearly.

Grammatical Range and Accuracy: Band 4.5

The response attempts a few longer sentences and uses sequencing clauses, but most sentence patterns are simple or incomplete, and frequent errors sometimes obscure the intended meaning. For example, “The given diagram illustrate” has subject–verb disagreement, while “This process is works” combines incompatible verb forms. Articles and sentence boundaries are also problematic, as in “First step is open the null,” and punctuation is inconsistent, with missing spaces after full stops and commas. The sentence “Every bottle the water level is equal” lacks a clear grammatical structure. Practise accurate simple sentences first, then build longer descriptions using forms such as “After the bottle is filled, water drips into the lower container.” Check agreement, verb forms, articles, and punctuation during editing.

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