Chapter 5 – Weathering, Soils, Mass Movements
What you NEED to KNOW!
Know and understand the soil texture triangle (pg 134 ), how to read it, and how to locate
information on it.
The horizontal cross sections of soil are called this:
All of the above organized from top to bottom are called this:
Define mass movement:
What effect have humans had on the rate of erosion?
Vegetation removal can cause a mass movement how?
Where would chemical weathering be more effective?
What happens to the volume of water when it freezes?
The upper-most layer in most soil profiles:
Define frost wedging:
Contrast the following mass movements (make sure to include what falls, and the speed
of the movement): rockfall, slide, slump, flow, creep.
Why would mass movements have a greater chance of occurrence during a wet spring
before plants start growing?
When feldspar is chemically weathered, this is produced:
Know and understand the soil profile diagram on pg 138. Be able to locate different
features within it.
Triggers of mass movements include:
Define mechanical weathering. Is it the same as physical weathering?
Define chemical weathering:
What determines the texture of a soil?
The power source of ALL mass movements:
The mass movement that is caused by freeze/thaw cycles in soil moisture is:
The 5 factors of soil formation. The one that has the greatest effect:
Where would you expect soil formation to be greatest, on a (steep/gentle) slope with a
(warm/cold) climate.
The 4 main components of soil:
Which weathers quicker, granite or marble? Why?
The name of a common tropical soil is:
Contrast chemical and mechanical weathering:
The factors that effect the rate of weathering in rock are:
What are some factors that effect the rate of soil erosion?