water is a kind of substance & hot roots a make 2 from a steam into a mist by decreasing light matter ->  water freezing means water changes from a liquid into a solid  water freezing means water changes from a liquid into a solid & water is in the solid state , called ice -> land hot electric land infection from a steam to snow water freezing means water changes from a liquid to ice  land hot electric land infection from a steam to snow & ice wedging is when ice causes rocks to crack by expanding in openings -> the ice formed by water freezing causes rocks to crack by expanding in openings