Erosion and Deposition

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Presentation transcript:

Erosion and Deposition Chapter 9 Erosion and Deposition

Review terms and ideas ______________ is the material moved by erosion. SEDIMENT What materials does sediment consist of? PIECES OF ROCK/SOIL AND PLANT AND ANIMAL REMIANS

REVIEW TERMS AND IDEAS DEPOSITION ______________ OCCURS WHERE THE AGENTS OF EROSION, DEPOSIT, OR LAY DOWN, SEDIMENT. DEPOSITION ____________,_____________, &______________ ACT TOGETHER IN A CYCLE THAT WEARS DOWN AND BUILDS UP EARTH’S SURFACE. WEATHERING, EROSION, AND DEPOSITION

______________ IS THE FORCE THAT PULLS ROCK AND OTHER MATERIALS DOWN HILL. GRAVITY THE FOUR TYPES OF MASS MOVEMENT INCLUDE __________,____________,____________, &____________ LANDSLIDES, MUDFLOWS, SLUMPS, AND CREEPS.

http://PHSchool.com/webcodes10/index.cfm Active art

Moving ___________ is the major agent of erosion that has shaped Earth’s land surface. WATER _____________is water that moves over Earth’s surface that carries particles with it. RUNOFF

The amount of runoff in an area depends on 5 main factors which are? AMOUNT OF RAIN, VEGETATION, TYPE OF SOIL, SHAPE OF THE LAND, HOW PEOPLE USE THE LAND

MORE RUNNOFF=MORE? EROSION!

FEATURES CREATED BY RUNOFF: THESE ARE? RILLS

THIS FEATURE IS?

THIS FEATURE IS? A STREAM

THIS FEATURE IS?

THIS FEATURE IS? A RIVER

EROSION BY RIVERS THROUGH EROSION, A RIVER CREATES VALLEYS, WATERFALLS, FLOOD PLAINS, MEANDERS, AND ____________ LAKES. OXBOW

THIS IS AN EXAMPLE OF?

THIS IS AN EXAMPLE OF?

WATERFALLS HOW ARE WATERFALLS FORMED? A RIVER FLOWS OVER AN AREA OF HARD ROCK THAT ERODES SLOWLY, THEN OVER A SOFT ROCK THAT ERODES MORE QUICKLY.

WHAT IS THIS AN EXAMPLE OF?

THIS IS AN EXAMPLE OF?

MEANDER WHAT CAUSES A MEANDER? WATER FOLLOWS THE COURSE OF LEAST RESISTANCE. IT WILL FLOW FIRST WHERE ROCK/SEDIMENT IS EASIER TO ERODE.

WHAT IS THIS AND WHY DID IT FORM?

OXBOW LAKE USUALLY FORM DURING FLOODS WHEN WATER FINDS AN EASIER WAY DOWNSTREAM AND CUTS OFF THE OLD MEANDER.

WHAT IS THIS AN EXAMPLE OF?

ALLUVIAL FANS STREAMS FLOW OUT OF A STEEP NARROW MOUNTAIN VALLEY AND SUDDENLY SPILL INTO AN OPEN, FLAT AREA OR WATER SOURCE

WHAT AND WHERE?

DELTA EXPLAIN HOW A DELTA IS FORMED. SEDIMENT THAT IS DEPOSITED BY A RIVER THAT FLOWS INTO A LAKE OR OCEAN BUILDS UP INTO A LAND FORM.

http://www.youtube.com/watch?v=n1cCs-S5EKc Mudslide http://www.youtube.com/watch?v=mknStAMia0Q Landslide