Land changes
Natural forces like wind and water change land over long periods. These changes happen slowly, not suddenly. Wind moves sand; rivers wear down rocks. Both processes take years to show a big change.
See worked examples
Mei wonders: A sand dune has shifted position near a desert road. What is moving the sand?
- Wind (right)
- Trees
- Frost
Omar and Nora are curious. A river cuts deep into a hill. What is happening?
- The hill grows taller
- Plants move to new spots
- Water changes the shape of land (right)
Amara wonders: Why do hills near rivers often get smaller?
- Frost makes rocks break quickly
- Birds build nests on the hill
- Water washes soil from them (right)
Tip: Natural forces like wind and water change land over long periods. These changes happen slowly, not suddenly. Wind moves sand; rivers wear down rocks. Both processes take years to show a big change.
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