WRITING TASK 1
Process diagram
You should spend about 20 minutes on this task.
The diagram below shows the formation and transformation of rocks over millions of years.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
- 1WeatheringWind and water break down rock
- 2ErosionFragments are carried away by rivers and ice
- 3DepositionSediment settles in layers on the sea bed
- 4CompactionLayers are pressed under their own weight
- 5Sedimentary rockCementing forms rock such as sandstone
- 6Heat and pressureBuried rock is changed deep underground
- 7Metamorphic rockRock such as marble is formed
- 8MeltingExtreme heat turns rock into magma
- 9CoolingMagma cools and solidifies into igneous rock
1WeatheringWind and water break down rock
2ErosionFragments are carried away by rivers and ice
3DepositionSediment settles in layers on the sea bed
4CompactionLayers are pressed under their own weight
5Sedimentary rockCementing forms rock such as sandstone
6Heat and pressureBuried rock is changed deep underground
7Metamorphic rockRock such as marble is formed
8MeltingExtreme heat turns rock into magma
9CoolingMagma cools and solidifies into igneous rock
The cycle then repeats from stage 1.