IELTS Writing Task 1: Light Pollution and Maps
Light pollution and dark skies
Answers and an explanation for each question appear once you add this activity to your own library.
IELTS Task 1: Light Pollution and Dark Skies
A step-by-step 40-minute writing workshop focused on map comparisons and concise data reporting.
For the Teacher
Set a strict 40-minute timer and guide students straight through the three stages in order.
Review the AI writing scores on the four official criteria before holding a brief class debrief.
For the Student
Warm up first with the quick data exercises on canteen numbers to build your core wording.
Next, examine the two Penmar town grids carefully and write your complete report of at least 150 words without notes.
Module 1: Vocabulary & Sentence Warm-Up
Get your writing tools ready with these four quick warm-ups on data words.
Word Forms: School Canteen Weekly Menu
Change the word in brackets into the correct form to complete the sentence about the canteen.
1. The catering staff noticed a weekly (fluctuate) ______ in hot meal orders during rainy days.
2. Salad bowls accounted for a relatively small (proportionate) ______ of total pupil purchases.
____3. Healthy fruit pots showed a (steadily) ______ increase in demand throughout the autumn term.
____4. Pasta dishes continued to (predominance) ______ over rice bowls every lunchtime.
____5. There was very little (vary) ______ in the number of milk cartons collected between Monday and Friday.
____Collocations for Describing Data
Choose the single word that naturally fits the gap.
1. Fish and chips recorded a ______ increase on Fridays, jumping suddenly from 40 to 120 orders.
2. Dessert consumption experienced a ______ drop once sugar-free guidelines were introduced.
3. Homemade tomato soup remained an ______ popular starter among junior pupils.
4. Gluten-free wraps represented a ______ proportion of total canteen revenue at just 4%.
5. Sales of warm porridge stood in ______ contrast to cold breakfast cereals on freezing mornings.
Common Phrases for Describing Figures
Word Bank
1. Vegetable curries ______ 28% of all hot lunches served in October.
____2. ______ daily snack turnover, filled rolls generated the highest income.
____3. The average price of a student meal deal ______ £2.80 in November.
____4. Chicken wraps and bean wraps logged 150 and 85 sales, ______.
____5. Pupils selected tap water on 300 occasions, ______ bottled juice on only 45 occasions.
____Paraphrasing: Rewriting Sentence Structures
Choose the sentence that says the exact same thing in different words.
Module 2: The Task
Look at how the town changed over ten years and write your full report.
Writing Prompt
"The two maps show how the lighting in the town of Penmar changed between 2014 and 2024. Summarise the information by selecting and reporting the main features."
Write at least 150 words.
Map 1: Penmar (2014)
North ↑4 rows × 5 columns (each cell represents one block):
Map 2: Penmar (2024)
North ↑4 rows × 5 columns (each cell represents one block):
Checklist: What Every Map Report Needs
Write your complete report in the box below. It will be assessed on Task Achievement, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy.
____ (The two maps illustrate the changes in lighting across the town of Penmar between 2014 and 2024...)Module 3: Model Answer & Helpful Phrases
Read this sample report to see how all the town changes fit together.
The two maps illustrate how lighting arrangements across the town of Penmar changed between 2014 and 2024.
Overall, the town shifted toward significantly darker nocturnal conditions, with exterior lighting either taken down or fitted with mitigation devices. The most pronounced reductions occurred in the northern and western sections of the town.
In 2014, the central north-south road featured bright street lamps, while a floodlit sports ground and floodlit car park were situated on the eastern boundary. By 2024, all lamps along this thoroughfare had been shielded. Additionally, the sports facility was upgraded with an operating timer, and the adjoining car park adopted dimmed lamps. Throughout this period, the retail shops, residential houses, and two south-eastern factories saw no visible modifications.
Turning to the west and north, the changes were just as clear. In 2014, the western park contained active lamps, and the hilltop was next to the observatory. A decade later, the park had become completely unlit after its lamps were removed. Most notably, both the hilltop and one adjacent block of farmland were converted into a designated dark-sky zone beside the observatory.
Why These Phrases Work Well
1. "The two maps illustrate how lighting arrangements across..."
Why this works: It says the same thing as the question in new words, so you do not copy the question.
2. "Overall, the town shifted toward significantly darker nocturnal conditions..."
Why this works: It gives the reader the big picture immediately without getting slowed down by minor individual numbers or street names.
3. "The most pronounced reductions occurred in..."
Why this works: It steers the reader to the area of the map that experienced the largest contrast, making your overview sound decisive and clear.
4. "...saw no visible modifications."
Why this works: It bundles everything that stayed the same into one tidy sentence so you do not repeat the word 'unchanged' three separate times.
5. "Turning to the west and north, the changes were just as clear."
Why this works: It acts like a road sign between paragraphs, telling the reader that you are now moving over to a new part of the grid.
6. "...had become completely unlit after its lamps were removed."
Why this works: It links the result (the park is dark) with the specific cause (the lamps were taken out) in one smooth, balanced clause.
7. "Most notably, both the hilltop and one adjacent block of farmland were converted into..."
Why this works: It highlights the single most striking transformation on the map and combines two adjacent grid blocks into one clear, informative sentence.
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