Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Complete Catalyst · 2026-10-07
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 5.0)
The diagram illustates the step-by-step process and describe how to build your own water clock.
Overall, in that process show different stage for make water clock. In that diagram mainly used water and use only one instrument for made own water clock like straw, glue, tape, tape, stand and neck cut off plastic bottle . That process in seven steps.
Firstly, take stand and tap bottle in top and make hole and conect straw with glue. Take that thing and sevral stage you fit. Water tap on in that plastic bottle. after you cover hole with finger. Third step fill top bottle to overflow. In addtion do level constant after work properly.
After bring water finger away from hole. And check levels per minute they drop in neck cut plastic bottle. And empty and repeat process for timing thing. That diagram of water clock. That is simple so we can make in own house.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.5 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 4.5 |
| Overall | 5.0 |
Task Achievement / Task Response: Band 5.0
You identify the subject and give a broad sequence, including filling the upper bottle until it overflows, releasing the hole, observing levels per minute, and repeating the process. However, the report only partially describes the diagram: the construction and operating stages are mixed together, and key details such as water dripping into the lower bottle and the pencil marking calibration lines are not clearly explained. The overview, “different stage for make water clock,” is too general to summarise how the apparatus works. Some details are also unclear or unsupported, such as “make hole” and “tap bottle in top.” To strengthen the response, distinguish the equipment and setup from the seven operating stages, and explain the water’s movement and how the markings are used to measure time.
Coherence and Cohesion: Band 5.5
There is a basic sequence, signalled by “Firstly,” “Third step,” and later “After,” and the reader can recognise that the process has several stages. The response also separates an opening, a brief overview, and a process description. However, progression is uneven: construction details are introduced before the numbered stages, then the steps are compressed into a single paragraph, making the order difficult to follow. Connectors such as “In addition” and “After bring water” do not clearly show the relationship between actions, while “That diagram of water clock” repeats the topic rather than advancing the report. Organise the account into a clear setup paragraph and a chronological stages paragraph, using accurate links such as “Once the bottle is full” and “As water drips into the lower container.”
Lexical Resource: Band 5.0
The response uses some relevant task vocabulary, including “straw,” “glue,” “stand,” “overflow,” and “levels per minute,” so the reader can identify the general subject. However, the range is limited and several phrases are imprecise or awkward, such as “tap bottle in top,” “neck cut plastic bottle,” and “repeat process for timing thing.” Repetition of “process,” “bottle,” and “water clock” also limits flexibility. Spelling errors, including “illustates,” “conect,” and “sevral,” reduce accuracy. Use precise terms for the apparatus and actions, and check spelling. For example, describe the lower container as a “bottle with its neck removed” and say that the straw “acts as an overflow outlet.”
Grammatical Range and Accuracy: Band 4.5
You attempt both short statements and longer sequences, but sentence structures are limited and many clauses are not grammatically complete or well controlled. For example, “Overall, in that process show different stage” lacks a clear subject and has incorrect agreement, while “After bring water finger away from hole” does not form a complete clause. Verb forms and sentence patterns are also faulty in “how to build your own water clock” after “describe,” and “we can make in own house.” These errors sometimes make the sequence hard to interpret. Practise complete subject–verb sentences and consistent present simple forms, such as “The water drips into the lower bottle.” Use linking clauses only when their grammar is secure, and check articles, plurals, and punctuation.
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