Band 4.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.5 · IELTS Complete Catalyst · 2026-11-04

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 below diagram show that how to construct your own water clocker in the diagram have several stages from one to seven we will dicuss this step by step the first stage involve tap which is used for water and the next stage is cover hole with finger and the third step is fill top bottle to overflow after that level balancing after that finger away from hole and six stage is levels per minute after empty and repeat process for timing things for this experiment we require some insturment to perform this stand plastic bottle neck cut off straw tape and another plastic bottle we will keep the stand steady then place the bottom bottle first after that we will attach the second bottle with tape and there will be a hole for the straw and tap for water and a small hole in the second bottle in the bottom

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

You identify the general subject and include several stages, such as filling the upper bottle until it overflows, removing a finger from the hole, and repeating the process to time things. However, the report only minimally describes the diagram: it does not clearly explain how the apparatus is assembled or how the water levels are used to measure time. Some details are inaccurate or unclear, including “a hole for the straw” and “a small hole in the second bottle”; the diagram shows a straw fixed near the top of the upper bottle and a hole at its base. There is also no clear overview of the process. To strengthen the response, summarise the setup and explain the sequence and purpose of the marked levels accurately.

Coherence and Cohesion: Band 4.0

The response follows a broadly chronological order, moving from the numbered stages to the materials and construction, and phrases such as “the next stage” and “after that” help signal sequence. However, nearly all the information is packed into one long sentence, so the progression is difficult to follow and relationships between steps are not always clear. The shift from describing the stages to listing materials and explaining construction is abrupt. Organise the report into clear sections or paragraphs—for example, an overview and setup, followed by the operating stages—and use full stops to separate each main step. This would make the sequence easier to understand without relying so heavily on repeated “after that.”

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “overflow,” “stand,” “plastic bottle,” and “repeat process,” so the reader can recognise the topic. However, the range is limited and several word choices or forms are inaccurate: “water clocker” is not the correct term, “insturment” is misspelled, and “level balancing” does not clearly describe the constant water level. “Attach” and “steady” are useful choices, but the description of the apparatus remains imprecise. Build a more accurate set of terms for the components and actions, such as “upper container,” “calibration marks,” “secure,” and “drain.” Check spelling and choose phrases that describe what each part does.

Grammatical Range and Accuracy: Band 4.5

The response attempts to connect several stages using sequencing phrases, but it relies mainly on one extended sentence and shows frequent problems with sentence boundaries and basic grammatical forms. For example, “The below diagram show that how to construct” has incorrect agreement and an awkward clause structure, while “the first stage involve tap” lacks correct verb agreement and articles. The final section also joins several separate instructions without punctuation, making the relationships between them unclear. Practise writing one complete sentence for each stage, using a consistent present simple passive where appropriate—for example, “The upper bottle is attached to the stand”—and check subject–verb agreement, articles, and full stops.

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