Weathering
Rates of Weathering
Soils
Erosion
100

This type of chemical weathering involves oxygen reacting with minerals (Ex. Rust)

Oxidation

100

What affect does the amount of surface area available have on how fast a rock weathers?

The more surface area, the faster the weathering process

100

A dark, organic material formed in soil from the decayed remains of plants and animals is called what

Humus

100

This soil conservation method involves the construction of ridges which follow the contours of a sloped field

Terracing

200

This type of mechanical weathering occurs at high elevations, in cold climates, and in temperate climates where the temperature freezes and thaws often.

Ice Wedging

200

Which rock is more prone to weathering? Sedimentary or Igneous?

Sedimentary

200

Which climate (Tropical, Temperate, or Desert/Arctic) has thin soil overall?

Desert/Arctic

200

Movement of fragments down a slope is called

Mass movement

300

This type of mechanical weathering happens when rocks break into curved sheets that peel away from the underlying rock

Exfoliation


300

What country kept Cleopatra's Needle prior to being moved to NYC in 1880?

Egypt

300

Horizon B is also called what?

Subsoil

300

A plateau is eroded into _______ which can be further eroded into _______ (must be pronounced correctly for points)

Mesas, Buttes

400

Acid rain (polluted by greenhouse gas emissions) causes this type of chemical weathering

Carbonation

400

What is the process by which softer, less weather-resistant rock wears away, leaving harder, more resistant rock behind?

Differential Weathering


400

Which climate (Tropical, Temperate, or Desert/Arctic) has a very thick A horizon?

Temperate

400

What is the difference between Solifluction and Creep?

Solifluction is the mass movement of an entire layer of water-saturated soil, Creep is the extremely slow movement of weathered material

500

What is the chemical formula for carbonic acid?

H2CO3

500
Parent rocks that are rich in feldspars weather to form what type of soil?

Clay

500

Reorder these soil types according to particle size:  Silt, Sand, Clay

Clay, Silt, Sand

500
Describe the three major landforms

Mountains - large upliftings of earth surface
Plains - vast areas of flat land near sea level

Plateaus - vast areas of flat land at high elevations

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