If your question was meant to say "what is a type of weathering that changes rocks" then I'll name you Two: one is called freeze thaw weathering, what happens is moisture and liquid water get into small irregularities in the rock and can freeze when the temperature gets cool enough, now when water freezes it expands by a scale of about 1.1X bigger (it gets bigger by 10%) which means if the water is in a small crack in the rock it will push outwards on the rock and crack it even more, this process will repeat and the rock will change in shape by cracking through and breaking. this weathering style also affects cliff faces etc.
The other type is called onion skin weathering i believe, basically the rock gets heated by the midday sun typically in a desert and heats up, it expands evenly as the heat is imparted over a long period, when night time comes around the temperature surrounding usually plummets and the surface of the rock cools down and shrinks, but the core is still hot meaning that the outer layers want to push back on the core which is too large (it cannot do this) so it cracks in order to fit around this still hot core of the rock, if you repeat this many times the rock will become defaced and cracked all over, eventually breaking down into gravel type rock.
It is a physical change
Its Called SHUT UP aND sTUDY
both physical and chemical
Mechanical Weathering
A type of Chemical weathering that happens when water interacts with minerals.
Mechanical weathering
If you meant weathering that is caused by water; physical weathering is the answer.
weathing
Chemical Weathering
physical weathering
mechanical weathering
mechanical weathering
Weathering and erosion
Chemical weathering
how does weathering change rock
Physical Weathering (aka Mechanical Weathering) is the main type of weathering in deserts.
how humanes change the rate of weathering
oxidation causes iron to change color. oxidation causes rust.
Ice wedging would help slow chemical weathering and make the soil more fertile.
The type of weathering that causes Ice Wedging is Mechanical/ Physical Weathering.