Erosion
One word that describes what erosion does
moves
One word that describes deposition
drops; deposits
What shape does an oxbow take?
U
Name a process that creates crust
Seafloor Spreading, volcanoes, hot spots
What does weathering do?
breaks
An agent that causes erosion
water, wind, glaciers, gravity
What 2 processes must occur before deposition?
1. Weathering
2. Erosion
is Weathering and Erosion by rivers constructive or destructive?
Destructive
Does seafloor spreading create or destroy crust?
Creates
What are the 2 basic types of weathering?
Chemical and mechanical/physical
Where does erosion occur in river bends?
outside of the bend
Name a landform that can result from deposition
Sand Dunes, Beaches, sandbars, deltas,
What is a meander?
curve/bend in river/stream
Name one example of a destructive process.
Rifting, weathering (Abrasion, Salt Weathering, Frost Wedging, Pressure Release), faulting, subduction, volcanic eruption (blows top off), etc
When ice freezes and expands cracking rock
Frost/Ice Wedging
What is it called when melt water from a glacier freezes around lumps of cracked and broken rock and the ice moves downhill?
Plucking
What is sediment?
Small particles of material from rocks and are moved by water or wind
How long does it take for a oxbow to form?
A. A few Months
B. Years to Decades
c. Millions of years
B. Years to Decades
What process forms mountains?
convergence (plates colliding/pushing into each other)
Dissolving, Clay Formation, and Rusting are all examples of what type of weathering
Chemical weathering
How does erosion by groundwater create a landform? (process and landform)
Acidic rock dissolves rock to form a cave
How does the velocity of the erosional agent change to cause deposition?
slows down
What is an Oxbow Lake?
A curved lake formed where the main stream gets cut off from a river
What landform can create AND destroy crust
Volcanoes or faults
Sand dunes are the result of...
A. Weathering
B. Erosion
C. Deposition
C. Deposition