Sometimes water gets into small cracks in rocks and then when it freezes, the water expands (takes up more space), making the crack larger.
(water; gets; into small cracks in rocks; T:Sometimes) (it; freezes; the water expands) Context(it freezes,List([62, 72))):(the water; expands; )
it freezes,List([62, 72))
water it the water
gets freezes expands
into small cracks in rocks T:Sometimes
the water expands