IELTS Diagram: Model Answer Band Score 9

This IELTS diagram model answer is estimated at band score 9 (last edited 2018). It is possible to have a diagram in your IELTS writing task 1 academic paper. A diagram is also known as a process. The diagram shown below is from IELTS Cambridge Book 8, Test 3.

The diagram below shows the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes.

cement and concrete

  • Source: Above diagram is from IELTS Cambridge English Test Book 8

Diagram Model Answer

The diagrams illustrate the way in which cement is made and how it is then used in the process of making concrete. Overall, limestone and clay pass through four stages before being bagged ready for use as cement which then accounts for 15% of the four materials used to produce concrete. While the process of making cement uses a number of tools, the production of concrete requires only a concrete mixer.

In the first stage of making cement, limestone and clay are crushed together to form a powder. This powder is then combined in a mixer before passing into a rotating heater which has constant heat applied at one end of the tube. The resulting mixture is ground in order to produce cement. The final product is afterwards put into bags ready to be used.

Regarding the second diagram, concrete consists of mainly gravel, which is small stones, and this makes up 50% of the ingredients. The other materials used are sand (25%), cement (15%) and water (10%). These are all poured into a concrete mixer which continually rotates to combine the materials and ultimately produces concrete.

Comments: This diagram gives a concise introduction. The overview contains key features of both diagrams and also highlights the connection between them. The body paragraphs are organised well and linking devices are used flexibly and accurately. Each body paragraphs explained the steps of each process in a logical order. Complex sentences are accurate and there is also passive voice used. Collocations are well used.


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  1. Hi Liz,
    I cannot upload answer to first IELTS Bar Chart Practice Sample question ( men ,women and children eating five portions of fruits and vegetables).
    Please share a link for the answer.
    Thank you.

  2. Band 8

  3. Thanks madam Liz, the work on your web is quite blissful

  4. LAMAN TEMEL says

    Hello Liz
    First of all, thank you for your videos, tips and all you do for us. I want to know one thing. Do we have to write writing tasks in IELTS with handwriting?

    • If you are taking normal IELTS, it will all be hand written. However, there are some countries and some test centers that offer computer delivered IELTS.

  5. Nabina pariyar says

    Hello liz i often got comment regarding a grammar how can i improve it plzz suggest me 😐😐😐

    • Sorry, my website focuses on exam skills rather than English language teaching. You should google an English language website that offers grammar exercises.

  6. Hi Liz,

    Thanks for a big support, your website is too useful.

  7. Jilson Thomas says

    The diagrams depict the process of cement production and its usage in making concrete.

    In cement production there are 4 stages involved. In the first stage limestone and clay are crushed to powder form. This then passes through a mixer into a rotating heater, which is supplied with constant heat at one end. Afterwhich, the mixture is ground to develop cement. This final product is bagged thereafter.

    The process of concrete making involves 4 items, cement(15%), sand(25%),gravel(50%) and water(10%). All these ingredients are mixed in a concrete mixer which rotates clock-wise.This process results in the formation of concrete.

    Overall, the making of cement is of 4 stages, in which a number of equipments are used. As far as concrete production is concerned, all the substances are mixed in a single machine.

  8. Hi, Liz. Firstly, I’d like to thank you for these great lessons which are very helpful for me in preparing my upcoming academic IELTS test. Secondly, I’d like to ask you if we are allowed to use/draw an arrow in the writing tasks? You know, to add some words that we’ve forgot to mention earlier. And when we use pen in writing tasks, is it okay to cross out some words, even a long sentence?

  9. Hi Liz,

    Thanks for your helping.

    I have a problem with the passive sense. Can I say “In the first stage of cement production, the limestone and clay are crushed into powder to being used.”? The problem is “being used”, what I mean is “to get ready to used’. If that is not correct, how do I describe a feeling of it?


  10. You are astonishing. thanks a lot for your help, time and on top of that patience.

  11. Hello,

    can all diagrams be written in a passive voice? such as the tense used in the diagram above?

  12. Maria Nizami says

    Hi Liz, first of all, thank you for your great advice. I was wondering about the format of writing. Are we allowed to leave space in the first sentence of every paragraph? (just to indicate that there is a new paragraph starting ?


  13. HI liz mam i want to ask you a question
    In the diagram you have not written separate paragraph of overview why

  14. Ashish Panchasara says

    hi liz
    you did great job for IELTS students.

    Thank you
    Ashish Panchasara

  15. Fatemeh Mohammadzadeh says

    Dear Liz,
    Thanks a lot for nice website that you have and it is very useful.

    Could you please tell me in writing we have write can not or can’t?


  16. hy …. mam
    i just want to ask that is conclusion is necessary in map and picture graph..

  17. Hey i just love ur videos..Kindly tell me whether we have to write conclusion in task 1??

  18. Thank you Liz. I can see some of the mistakes I made in my first IELTS. This is very helpful.

  19. Harminder singh says


    May i know in which tense we need to write our writing task 1- past or present..??

  20. in academic writing task1 do we have to write overview as a new paragraph or write it into introduction paragraph?

  21. Hello Liz,

    First of all, i would like to big thank you for a very useful and wonderful your site☺

    I have two quiries .
    (1) you had used so many times the word like”spent” in writing task 1. So if we use a one word more than once in writing task 1,Would it chance to loose band?
    (2)In which situations, Will we use passive voice in both writing tasks?

    Best Regards,

  22. If the examiner can read it, it’s fine. If you need to erase something, make sure it is fully erased and the new word is easily seen.

  23. I wouldn’t insert a sentence because it might be difficult for the examiner to read. But inserting a word or two is fine. Just make sure everything is very clear and easy to read.

  24. Thank you, you’re the best!

  25. cta sapkota says

    Hello ma’am,
    First,I want to thank for your effort in helping us.
    I have test coming up at the end of this week.I am not sure about what to write with in writing task,pencil or pen!Which will you recommend? I apologise for asking irrelevant question here.

    Thank you

  26. Dear Liz,,
    First of all I would like to say a big thank you for your great job 🙂
    You said that we should write overview in writing task 1.but if we have a diagram,what kind of overview should I write in that case??.
    Thank you..

    • The overview contains the key features which are often main stages (but not always when you see the water supply diagram).
      All the best

  27. Is “grinded” is incorrect past participle of “grind’?

  28. Abdinasir Mohamed says

    Dear Liz
    Hope this message finds you well. I have to confess that you are truly helpful and talented.I have been using your blog for my academic IELTS self-study preparation, and I have scored my target with first attempt.
    I can’t express in words, how helpful you are, and your teaching skill is amazing.
    best regards

  29. Hi mam, can I use your model answer to write in my writing, I mean can I memorise the structure answer of each question types to do my report. Will the examiner realize that and will it affect my score ? Thank you 🙂

  30. Dr.Saqib Ali says

    I got a question about the word” ingredient” as you said it can be used for FOOD only but you have used this in the above model answer.???

  31. thank you so much!, you have been very helpful.

  32. Dear Liz,

    Can you explain for me how to you the word “the” correctly in this task? For example, the last sentence of the first paragraph, why the word “cement” is mentioned for the second time, it still stands alone?

    Thank you,

    • Because they are two different nouns. One noun is “concrete” and the other noun is “concrete mixer” which is a compound noun.
      All the best

  33. Dear Liz
    hello , i got a question
    dose flow charts come also in task 1 for the academic exam ?


  34. Writing task-1 is important in band calculation or not important? Mem, please give the knowledge about writing task band calculation with examples and also give the knowledge about weightage of each task(1,2)

  35. Hi dear Liz
    and than you a lot for your great sample answer!
    I have a question. at the end of your essay, you wrote — ultimately produce concert.
    did you mean produces? or I’m wrong?
    By the way you are wonderful 🙂
    with the best regards

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