Weathering
mechanical weathering that occurs when water freezes in cracks of rocks
What is ice wedging?
The difference between weathering and erosion.
Weathering=breaking
Erosion= moving
mixture of weathered rock, rock fragments, decayed organic matter, water, and air
What is soil?
rocks are broken into smaller piece by physical processes
What is mechanical weathering?
weathering that occurs when rock is ground away by friction or impact
What is abrasion?
The Grand Canyon was formed by
What is weathering by the Colorado River?
What type of environment has the most frost wedging?
Areas with a constant freeze, thaw cycle.
Rock broken down that has a changed mineral composition.
What is chemical weathering?
Type of weathering caused by living things.
What is biological weathering?
Name agents of erosion
Most powerful agent of erosion
What is water?
Humus is found in what horizon?
What is O Horizon?
combines the element oxygen with other elements or molecules to break down rock
What is oxidation?
water dissolves minerals in rock in which type of weathering
What is chemical weathering?
Name three landforms created by deposition
What is an alluvial fan, desert, sandbar, delta, barrier island, beaches, salt marsh, ocean floor or moraine?
What gives soil nutrients?
minerals present and decomposed material.
the rate of weathering depends on this
What is type of rock or environment?
The difference between chemical and mechanical weathering.
Chemical weathering changes the mineral composition of rock and physical weathering just breaks down the rock with a physical process.
Ways that you can slow erosion.
Plant vegetation, proper water drainage, plant cover crops, not over watering, no till farming, metal netting on rock walls.
In which Horizon do you find Parent Material (partially weathered rock)
What is the C Horizon?