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Delta Modern Language School
Grade 4
Date ......./......./………

➢ Some landforms are created due to erosion and deposition processes by
wind and sand at the same time as sand dunes.

➢The sand dunes usually seen in groups, and they may cover a large area.
➢The sand dunes can be hundreds of meters tall.
➢Sand dunes are common landforms between beach and sandy desert.

❖ The wind moves the sand where:
- The distance that the sand travels depends on the force of the wind.
- The way the sand moves depends on the direction of the wind.
➢The sand dunes often formed when something blocked the path of the
sand, such as rocks.

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