1. Erosion and Deposition
Chapter 9
Erosion and Deposition

2. 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

3. 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

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

5.
Active art

6. 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

7. 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

8. MORE RUNNOFF=MORE?
EROSION!

9. FEATURES CREATED BY RUNOFF: THESE ARE?
RILLS

10. THIS FEATURE IS?

11. THIS FEATURE IS?
A STREAM

12. THIS FEATURE IS?

13. THIS FEATURE IS?
A RIVER

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

15. THIS IS AN EXAMPLE OF?

16. THIS IS AN EXAMPLE OF?

17. 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.

18. WHAT IS THIS AN EXAMPLE OF?

19. THIS IS AN EXAMPLE OF?

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

21. WHAT IS THIS AND WHY DID IT FORM?

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

23. WHAT IS THIS AN EXAMPLE OF?

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

25. WHAT AND WHERE?

26. 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.

27.
Mudslide
Landslide