Question

How does alternate freezing and thawing of water cause weathering to occur?

Answer 1

Hi. When water seeps into the cracks in rocks it expands as it freezes. Once it thaws, it seeps yet again into additional cracks in the rock. Over time, this causes large chunks of the rock to loosen and subsequently fall off.

Hope this helps.

Take care,
Diana

Answer 2

How does alternate freezing and thawing of water cause weathering to occur? Freezing chemically alters the rock surfaces Water expands when it freezes and cracks rocks open Thawing causes rock particles to move from place to place. User is waiting for your help.