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Weathering and Erosion

Terms in this set (20)

What is more likely to occur in a forest than a desert?
Chemical weathering
What is a model of chemical weathering?
Exposing rocks to rain
Mass wasting can be considered a type of _________________
Erosion
What type of weathering does water fit into?
Chemical and Mechanical Weathering
On average, how long does it take for 1 cm of soil to form?
500 years
Chemical weathering changes the ________________ of a rock.
Composition
A soil that is wet will have a slower _________________ than a soil that is dry.
Infiltration
Rock undergoes ________________ combining with the oxygen in the air.
Oxidation
____________________ is a soil property that changes daily with weather and mostly effects the upper A horizon.
Temperature
The amount of nutrients in soil determines its ________________.
Fertility
What are the 5 layers of soil?
1. O
2. A
3. B
4. C
5. R or Parent material
What are the two types of weathering?
Mechanical and Chemical weathering
What is an Ex. of Mechanical Weathering?
When water gets in a crack of a rock and freezes and crack the rock more.
What is an Ex. of Chemical Weathering?
Acid rain
How can ice cause weathering?
Ice can break down rocks when it freezes and thaws
What are the 5 agents of erosion?
1. Gravity
2. Running Water
3. Waves
4. Glaciers
5. Wind
Why do increasing temperatures on the planet cause worse erosion on the coasts?
When the glaciers melt the sea level rises and the waves get stronger and the land erodes
What are the two types of glaciers?
Ice Sheet Glaciers
Alpine Glaciers
Who was the Grand Canyon formed from a mountain range to what it is today?
Over a long time water and weather has made the canyon
What are the 3 steps in the geologic cycle?
1. Weathering
2. Erosion
3. Deposition
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