What type of climate causes weathering to take place rapidly?
Warm(hot), moist (humid)
What causes rusting?
Oxidation of metal found in rocks.. Iron reacting with oxygen in the water and air
What factors determine the rate of weathering? (What can cause weathering to happen faster/slower)
1. type of rock/ mineral composition 2. climate 3. surface area 4. Type of weathering
Give 2 examples of Mechanical Weathering.
ice wedging, root wedging, animal actions, abrasion (wind or water)
_______________ is a term that describes the grinding away of rock by other rock particles carried in wind, water or ice.
Abrasion
What is weathering?
The breaking of rock
What is the difference between chemical and mechanical weathering?
C- changes the chemical composition of the rock M- only changes the size of the rock
__________ ____________ is a form of chemical weathering that is created when fossil fuels are burned creating air pollution that mixes with water in the atmosphere.
acid rain
What is deposition?
the dropping or settling of sediment in a new location.
Which force of erosion carries rocks with the greatest mass? (boulders)
glaciers
What is runoff?
water that flows over the earth’s surface.
A _________ forms because as the river enters the ocean, its flow dramatically _____________causing it to drop the sediment that it is carrying.
Delta, slows (decreases its speed)
____________ is a force of erosion that causes rocks and soil to move from an area of higher elevation to an area of lower elevation.
gravity
__________ & ______________ wear down Earth’s surface while _____________ builds it up.
weathering & erosion deposition
What is erosion?
the movement of sediment caused by wind, water, gravity, or ice.
Chemical weathering usually involves a weak or strong _________ dissolving rock.
acid
What is a watershed (drainage basin)?
the land area that provides or collects all the water for a river’s system.
___________ is the major force of weathering and erosion on Earth’s surface.
water
What type of weathering causes ice wedging?
mechanical
The growth of plant roots and animal actions are examples of _________________weathering.
mechanical
As the surface area of a rock increases, then the rate of weathering will _____________
increase
What is mass movement? List the different types from slowest to fastest.
Erosion caused by the force of gravity. creep, slump, mudflow, land slide
A _____________________ ___________ is a long narrow bar of sand that forms parallel to the main land and is created by waves transporting sand.
barrier island
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