Erosion and Deposition 6 th Grade Earth Science

What is Erosion? Erosion is the movement of sediment by wind, ice, water, or

What is Deposition? The process by which sediment drops out of the wind, water,

Gravity Erosion Angle of Repose is the steepest angle, or slope, at which a

Gravity Deposition Mass Movement gravity moves material down a slope 1. Landslide - rock

Landslides__Products_of_O pposing_Forces__Heat_vs_ _Gravity. asf

LANDSLIDE MUDFLOW 2 1 What type of mass movement is each picture? http: //classes.

Ice Erosion Continental Glaciers – covers continent. Flattens / smoothes land Kettle Lakes Alpine

Ice Deposition Tills – unsorted, deposited rock material Moraines – ridges along edge of

Continental Glacier 1 Alpine Glacier 2 1 2 Which type of glacier or landform

2 1 Outwash Plain Southeast, Alaska Moraine Thompson Glacier, Canadian Arctic What did glaciers

Wind blows sediment after it is weathered.

Wind Deposition ¢ Sand Dunes – mounds of wind deposited sand. Move in direction

Water (rivers, oceans, rain, etc. ) washes sediment after being weathered

Water Erosion ¢ Sea Cliffs – rock wears away ¢ Sea Caves – hole

2 1 11 5 3 SEA ARCH 2 3 SEA CAVE SEA CLIFFS 4

Eroding_Power_of_Swiftly_ Flowing_Streams__Gorges_ _Canyons__and_Valleys. w mv

Water Deposition ¢ Deltas – slow river current drops sediment in fan-shaped pattern at

http: //www. schoolportal. co. uk/Group. Download. File. asp? file=21604 1 1 4 5 3

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Erosion and Deposition 6 th Grade Earth Science October 2016

What is Erosion? Erosion is the movement of sediment by wind, ice, water, or gravity.

What is Deposition? The process by which sediment drops out of the wind, water, ice, or gravity (w, w, i, g) that carried it and settles in a new location.

Gravity Sediment falls

Gravity Erosion Angle of Repose is the steepest angle, or slope, at which a material will not slide down. If the slope is weathered, material erodes downward due to gravity.

Gravity Deposition Mass Movement gravity moves material down a slope 1. Landslide - rock & soil fall quickly a. Slump – rock & soil suddenly fall, big mass 2. 3. Creep – slow, down movement of rock/ soil. Mudflow - mud

Landslides__Products_of_O pposing_Forces__Heat_vs_ _Gravity. asf

LANDSLIDE MUDFLOW 2 1 What type of mass movement is each picture? http: //classes. colgate. edu/dkeller/geol 101/massw/mass. htm CREEP SLUMP 3 4

Ice (glaciers) carry sedimen

Ice Erosion Continental Glaciers – covers continent. Flattens / smoothes land Kettle Lakes Alpine Glacier – in the mountains. Land made rugged. Horns – sharp pyramid shaped peaks U-Shaped Valleys

Ice Deposition Tills – unsorted, deposited rock material Moraines – ridges along edge of glacier Stratified Drift – layers of rock deposited based on size Outwash plain – large area of drift

Glaciers. asf

Continental Glacier 1 Alpine Glacier 2 1 2 Which type of glacier or landform is represented in each picture? www. uwsp. edu/. . . /lecture_glacial_processes. html Kettle U Shaped Valley 3 3 4 4

2 1 Outwash Plain Southeast, Alaska Moraine Thompson Glacier, Canadian Arctic What did glaciers create in each picture?

Wind blows sediment after it is weathered.

Wind Deposition ¢ Sand Dunes – mounds of wind deposited sand. Move in direction of wind. ¢ Loess – thick deposits of fine-grained, wind blown sediment http: //www. nwlg. org/pages/resources/geog/hydro_cycle/dunes/stop 7 b. htm

Wind. asf

Water (rivers, oceans, rain, etc. ) washes sediment after being weathered

Water Erosion ¢ Sea Cliffs – rock wears away ¢ Sea Caves – hole in rock created by waves near cliff ¢ Sea Arches – waves cut hole completely through rock in a sea cave ¢ Sea Stacks – offshore column of rock once connected to the mainland

2 1 11 5 3 SEA ARCH 2 3 SEA CAVE SEA CLIFFS 4 2 45 SEA STACKS 6 4 What did water erosion create in each of these pictures?

Eroding_Power_of_Swiftly_ Flowing_Streams__Gorges_ _Canyons__and_Valleys. w mv

Water Deposition ¢ Deltas – slow river current drops sediment in fan-shaped pattern at end of river ¢ Sand Bars – offshore deposit of sand, gravel, or shell material ¢ Alluvial Fans ¢ Beaches – deposited sand

Deposition. asf

http: //www. schoolportal. co. uk/Group. Download. File. asp? file=21604 1 1 4 5 3 2 DELTA 2 SANDBAR 44 BEACH 6 ALLUVIAL FAN What did water create in each of these pictures?