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Weathering

Teacher: 6th Grade Dad
Across
Weathering away of rocks by the mechanical action of other rocks
Outer layers of rock slowly peel away due to pressure changes
As a seedling grows it will split a rock in half
Causes rocks to fall, crash into each other and break apart.
Carries small particles that can blast away at rock surfaces
Causes rocks to breakdown and change composition
Will cause rocks to separate from the underlying layers
Breaks down rocks by chemical reactions. Oxygen in the air or acids
Down
Chemical reaction that will cause a color change in rocks
The breakdown of rocks by physical or chemical processes
Causes a chemical reaction called oxidation.
They dig burrows into the ground exposing rocks
Weathering caused by plant and animal actions, wind or water