Academic Writing Task 1 · process diagram

A diagram illustrating the natural process of the water cycle

The diagram below shows how the water cycle works.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

The Water Cycle
  1. 1.Sun's heat causes evaporation from the sea
  2. 2.Invisible water vapour rises
  3. 3.Vapour cools to form clouds
  4. 4.Wind moves clouds over land
  5. 5.Clouds cool further causing rain
  6. 6.Transpiration from plants and trees
  7. 7.Evaporation from lakes and rivers
  8. 8.Water carried downstream by river
  9. 9.River flows into the sea
  10. 10.Ground water flows through porous rock into lakes, rivers and seas

Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.

Band 8 sample answer

The provided diagram illustrates the various stages of the water cycle, a continuous natural process that circulates water between the Earth's surface and the atmosphere. Overall, the cycle is primarily driven by solar energy, which facilitates the movement of water through evaporation, condensation, and precipitation across different geographical features.

The process begins when the sun's heat causes water to evaporate from the sea, turning it into invisible water vapour that rises into the atmosphere. As this vapour cools, it forms clouds, which are then transported over land by wind. Once these clouds cool further, precipitation occurs in the form of rain. Simultaneously, water is also released into the atmosphere through transpiration from plants and trees, as well as evaporation from inland lakes and rivers.

Once the rain falls onto the land, the water follows several paths. Some of it is carried downstream by rivers, eventually returning to the sea. Other portions of the water infiltrate the ground, moving through porous rock as ground water, which ultimately feeds back into lakes, rivers, and the sea. This cyclical movement ensures that water is constantly redistributed across the planet's surface.

187 words. Every figure in the answer comes from the chart above.

How to write about process diagrams

facilitates
makes an action or process easier to happen
precipitate
rain, snow, or hail falling to the ground
simultaneously
happening or done at the same exact time
infiltrate
to pass gradually into or through a substance
redistributed
to distribute something again or in a different way
cyclical
occurring in cycles or a repeating series

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Frequently asked questions

What should the overview say?

The water cycle is a continuous natural process driven by solar energy, involving the movement of water between the sea, the atmosphere, and the land through evaporation, condensation, and precipitation.

How long should an IELTS Task 1 answer be?

At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.

How do I describe process diagrams?

Say how many stages there are and where the process starts and ends. Use the passive and sequencers: first, after this, once, finally. Keep every stage; a missing step costs task achievement.

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