Chemical or Mechanical?
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Mish Mash
Miscellaneous
100
Ice Wedging
Mechanical
100
Lichens and moss produce ________ that break down rocks, sometimes producing soil.
Plant Acids
100
Define weathering.
Breaking down rock by natural forces
100
This type of weathering creates huge boulder fields at the base of mountains
Ice Wedging
100
What acid is used in the formation of caves?
Carbonic acid
200
Hydration
Chemical
200
Type of weathering where rocks will break off in sheets or layers.
Exfoliation
200
A large rock falling down a cliff and breaking as it falls is considered what type of weathering?
Gravity
200
What is the main causes of exfoliation?
Pressure Release
200
What 3 things affect the rate of weathering?
Surface area, climate, composition
300
Oxidation
Chemical
300
Process where rust is formed as a result from a chemical reaction between iron and oxygen in the air.
Oxidation
300
What is the difference between chemical and mechanical weathering?
Mechanical= changing size/shape (NOT composition) Chemical= chemical reactions (CHANGING composition)
300
What are the 2 main "forces" of abrasion?
Wind and water
300
Rocks at the bottom of a river have what type of shape?
Flat, smooth, round
400
Gravity
Mechanical
400
Type of weathering where sediments carried by wind and water collide.
Abrasion
400
Type of weathering where water dissolves minerals found in rocks.
Hydration
400
Describe how the speed of water affects the rate of weathering.
Faster water= stronger weathering forces= faster weathering
500
Root Pry
BOTH!
500
Forms when carbon dioxide dissolves in water vapor from the air.
Acid rain (carbonic acid)
500
Why did your sugar cubes lose the most mass in the first 3 minutes of shaking?
Corners/edges were weathered down
500
What 2 air pollution gases contribute to the formation of acid rain?
Sulfur dioxide and nitric oxide
500
What gas is dissolved into water vapor to make carbonic acid?
Carbon dioxide
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