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Rocks and Weathering

Across
Is the process of wearing down and carrying away rocks
This principle states that the geological processes that operate today also operated in the past
The type of weathering in which rock is physically broken into smaller pieces
Is the process that breaks down rock and other substances
Refers to the wearing away of rock by rock particles carried by water, wind, ice, or gravity
Down
Iron combines with oxygen in the presence of water
Is the process that breaks down rock through chemical changes
Wedges of ice in rocks widens and deepens cracks
A material is full of tiny, connected air spaces that allow water to seep through it