EROSION
Name: ____________________
Date: ______________ Hr: ___
Earth Science
GLACIAL EROSION (Ch 15: p. 277-281)
Define the term glacier:
Describe each step in the formation of a glacier
Snowfall
Firn
Glacial Ice
Explain what the growth of a glacier depends on:
Glacial advance vs. Glacial retreat
Describe the characteristics of alpine
vs.
continental glaciers.
Description
(shape, size)
Location
on Earth
Describe each type of glacial movement (basal slip, internal plastic flow).
- Basal Slip
-
Internal Plastic Flow
(Lab) Explain why the center of a glacier moves faster than its sides.
Page 1 of 4
EROSION
Earth Science
Describe the 2 ways that glaciers erode rock:
 Plucking/Ice Wedging
Name: ____________________
Date: ______________ Hr: ___

Abrasion
Describe observable features caused by glacial EROSION
(indicate if each is alpine or continental)
 Cirques
 Hanging valleys

Horns

Striations

Arêtes

Kettle Lakes

U-shaped valleys

Describe observable features caused by glacial DEPOSITION.
(indicate if each is alpine or continental)
 Drumlins
 Eskers


Moraines
o End/Recessional

Kames
o Terminal
Glacial Sediment
o Erratics
o Till
o Outwash
MICHIGAN’S GLACIAL HISTORY
List scientific evidence proving glaciers were a part of Michigan’s recent history.
Explain what happens to Earth’s crust when a glacier is removed.
Page 2 of 4
EROSION
Name: ____________________
Date: ______________ Hr: ___
Earth Science
WIND EROSION
Describe the 3 main sediment sizes (include rough measurements for comparison):
 Sand
 Silt
 Clay
Identify the sediment sizes that are able to travel by wind.
Describe the two main types of wind erosion:
 Deflation

Saltation
Describe how sand dunes and loess deposits each form
WAVE EROSION
Describe what causes waves to form, and how they become breakers.
Diagram how current + wave motion = longshore drift
Match the terms below with the letters in the diagram (each is used once).
Page 3 of 4
EROSION
Name: ____________________
Date: ______________ Hr: ___
Earth Science
Describe the type of event that causes the most beach erosion.
Describe ways that human TRY to prevent beach erosion:
 Groins
 Jetty
 Seawall
MASS MOVEMENTS
Define mass movement:
Describe the triggers of mass movements (which are most common)?
List and describe the main types of mass movements:
 Rockfall/slide
 Slump

Landslide

Creep

Mudflow/Lahar

Solifluction
Page 4 of 4

Breakwater