Weathering
Erosion
Deposition
Soil
Examples
100
What is weathering?
The breaking down of rock into smaller pieces.
100
What are the 4 different types of erosion?
Wind, water, gravity, ice.
100
What is the definition of deposition?
Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass.
100
What is the most nutrient filled horizon of soil called?
What is humus.
100
Glacial Erosion
200
What are the two types of weathering?
mechanical and chemical
200
What is the strongest form of erosion?
What is water
200
What are the primary agents of deposition?
Water, wind, ice, and gravity.
200
What are the layers of soil called?
What are horizons.
200
Physical Weathering by Abrasion
300
What is the name of the chemical weathering that involves oxygen and iron?
Oxidation
300
What is erosion?
Erosion is the process by which sediment and other materials are moved from one place to another.
300
What is one form of wind deposition?
Sand dunes.
300
What is the order in size of the 3 main particles, aside from humus, found in soil? (smallest to largest)
Clay, silt, and sand.
300
Rockfall Erosion by Gravity
400
What form of chemical weathering comes from the pollution create by humans?
Acid Precipitation
400
What does erosion cause streams to do?
They cause streams to widen and deepen
400
What does deposition do to the environment?
It builds up things from the sediment that is relocated there.
400
Does soil help plants in any way?
Yes, they give plants nutrients and a place to anchor roots for support and water absorption.
400
Mechanical weathering by Animal Action(Burrowing)
500
Name an agent of physical weathering that splits rock apart.
Root pry or ice wedging.
500
What kind of land form does erosion by running water create?
V-shaped valley.
500
This is often created because of wind deposition in a desert or beach.
sand dune
500
How would you describe the three main soil horizons?
A is topsoil consisting of humus, B is subsoil consisting of mostly sand and silt, and C is weathered rock and clay.
500
Sandstone Arch Erosion by Wind
600
What are lichens and what do they do?
Type of plant that grows on rock and they chemically break down rock to create soil.
600
Name a mass movement that may occur after very heavy rains.
Mudflow
600
If a VERY LARGE rock is found in the middle of a park in New York, what might have deposited it there?
Glacier
600
How is soil formed?
It is formed from the weathering of bedrock from below and organic materials from above.
600
Mass Movement(Creep) Erosion by Gravity
700
What does hydrolysis do and involve?
It involves water chemically breaking down and changing rock.
700
Caves, sea arches, and sea stacks are the result of what?
Erosion by wave action.
700
What can a longshore current create?
A beach, sandbars, a barrier island. (any of these)
700
What is the difference between a dirt mover and decomposer(give an example for each)?
A dirt mover exposes the soil like a prairie dog and a decomposer breaks it down like an earthworm.
700
Barrier Island Deposition by Water
800
What type of region would experience the most chemical weathering and which would experience the most physical?
chemical-warm and wet/physical-cold and wet
800
What are the two key ingredients to make a mass movement to occur?
Gravity and water.
800
Is deposition related to erosion, if so how?
Yes, because it follows erosion when energy is lost or friction is too strong.
800
Make a comparison of these three soil samples(Georgia, Florida, and Pennsylvania).
GA=clay, FL=sandy, and PA=loamy(or sand, silt, and clay)
800
Dust Storm Erosion by Wind
900
What would be the difference between rock physically weathered by wind and water?
Water would be smooth and rounded, whereas, wind would be more pitted and angular
900
A U-shaped valley is evidence of what?
An alpine glacier.
900
In a cave, these are formations of deposition.
Stalagmite, stalactite, column.
900
Does the type of soil vary depending on your position, if so how?
Yes, it can be different colors, different thickness, or different composition.
900
Alluvial Fan Deposition by Running Water
1000
Stone Mountain experiences this type of physical weathering due to heat expansion of its Granite.
Exfoliation
1000
Which erosional force can have the most features for and give at least two of them.
Glaciers-kettle lakes, moraines, striations, etc.
1000
Name given to rock and debris found at the bottom of a hillside or mountain after a rockfall.
Talus
1000
Name and describe two ways to conserve the soil.
(any of these-erosional barriers, composting, crop rotating, no-till farming, contour plowing, etc)
1000
Chemical Weathering Oxidation