As ice forms in the cracks of a street, the water expands and pushes against the surrounding rock, making the cracks wider, eventually breaking apart the rock.
(the water; expands; T:As ice forms in the cracks of a street) (the water; pushes; against the surrounding rock; T:As ice forms in the cracks of a street)
the water the water
expands pushes
T:As ice forms in the cracks of a street
against the surrounding rock T:As ice forms in the cracks of a street