Water Erosion - Weebly

Water Erosion - Weebly

Water Erosion Chapter 4.1 Pages 118-127 Key Questions How does moving water cause erosion?

What land features are formed by water erosion and deposition? The GREAT BLUE HOLE Where is it located? Belize in Yucatan Peninsula

p. 118 Moving water is the major agent of the erosion that

has shaped Earths land surface. Runoff Water that flows over the

ground surface rather than soaking into the ground. Factors affecting Runoff

p. 119 Stream Formation p. 120 Because of gravity, runoff and the material it contains flow downhill. As the water moves across the land, it runs together to form:

Rills Gullies Streams Rivers Rills

Tiny grooves in the soil made by running water. The toy car is bigger than a ****.

Gully A large channel in soil that carries runoff after a rainstorm. Moon Island Rills

Boston Harbor, Massachusetts Stream A channel through which water is continually flowing downhill.

Tributary A stream or river that flows into a larger river.

Stream Formation Which arrows indicate the direction of sheet erosion?

Where are rills and gullies in the picture? Streams and rivers? Tributaries?

Stream Formation River Erosion page 121 Through erosion, a river creates valleys, waterfalls, flood plains, meanders, and oxbow

lakes. Waterfalls Where do you think the layers of hard and soft rock

are located? HARD SOFT Flood plain

The flat, wide area of land along a river. Meander A loop-like bend in the course of a

river. Oxbow lake A meander cut off from a river. Oxbow

Lakes What happens in step 2 and 4 of this diagram

to form an oxbow lake? Step 1 Step 2

Step 3 Step 4 Water Deposition p. 124 As water moves it

carries sediment with it. As it slows down, it drops or deposits, some of the sediment.

Deposition creates such land forms as: Deltas Alluvial Fans

Delta A landform made of sediment that is deposited where a river flows into an ocean or lake.

Alluvial fan A wide, sloping deposit of sediment formed where a stream leaves a mountain range.

Rolling Through the Hills Identify the two

missing features on the image. Meander

Delta Groundwater Water that fills the cracks and spaces in underground soil and rock

layers. Groundwater can cause erosion through a process of chemical weathering.

Stalactite An icicle-like structure that hangs from the ceiling of a cavern.

Stalagmite A column-like form that grows upward from the floor of a cavern. Stalagmites in Carlsbad Caverns' Big Room

Karst topography A region in which a layer of limestone close to the surface creates deep valleys, caverns,

and sinkholes. Sinkhole on Ocala, Fl farm Karst Topography Why do you think karst topography occurs in these areas? Because the bedrock is made of layers of limestone.

Name 3 states that you can find Karst Topography? Florida, Texas, Missouri Key Questions How does moving water cause erosion? Moving water is the major agent of the erosion

that has shaped Earths land surface. What land features are formed by water erosion and deposition? Valleys, waterfalls, flood plains, meanders, oxbow lakes, deltas, alluvial fans, caves

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