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Science

Across
Process by which minerals reacts with cartonic acid
One of the 3 major reasons rocks are weathered
When roots grow or animals dig holes, rocks split apart
The break down of rock into smaller pieces by physical means
A wearing away or rubbing away by friction
Wear away or change the appearance or texture d
Polluted rain that can damage trees and kill fish in the lakes
Determined by the amount of moisture in an area
A highly corrosive acid made form sulfur dioxide
Down
The process in which rock is broken down changes in its chemical make-up
A chemical change in which a substance combines with oxygen, as when iron oxidizes forming rust
The mechanical breakup of rock caused by the expansion of freezing water in cracks and crevices
The expansion of matter when it is heated
Breaking down complex molecules by the chemical addition of water
The area of rock exposed to the elements on the earths crust