The earth changes slowly through natural processes like moving water, wind, and ice. Moving water and wind can break down and carry away rocks and soil. Ice forms in cracks in rocks when water freezes, and the expansion of freezing water pushes rocks further apart, breaking them down over time.

1. How earth changes slowly
How does earth change?

2. 1) Moving water
Moving water can break down rocks
 Strong waves.
 Moving rivers.

3. 2) Strong wind
 Wind can carry sand and soil away.

4. 3) Ice
 Ice breaks down rocks.

5. How does the ice break the rocks?
 Water fills the cracks.
 Water changes to ice when it gets cold.
 Ice pushes the rock far apart.