1. Weathering, Erosion and Deposition

2. What is spelunking?
Cave exploring

3. Lesson Vocabulary words
Weathering
Physical weathering
Chemical weathering
Erosion
Deposition

4. Physical Weathering Changes Rocks
Abrasion from wind and moving sediment
Glaciers scratching rocks
Plant roots and animals breaking rocks
Freezing ice
Pressure changes

5. Chemical Weathering Changes Rocks
Plants releasing compounds into rock and soil
Lichens that release acids
Oxidation
Acid rain
Groundwater

6. Movement of sediment by wind, water, ice and gravity is called .
EROSION

7. 3 causes of Erosion other than wind.
Gravity
Moving water
Glaciers

8. How do wind and water change landscapes?
Wind and water can create sediments from rocks, erode, then deposit at a different location.

9. Weathering and Erosion on a Coast
waves
currents
Both _______________ and ___________________ cause weathering, erosion and deposition along coastlines.
________________ ________________ can form as water erodes and abrades the land to create a deep hollow.
Sea
Caves

10. Deposition along a coastline
When an agent of erosion drops sediment or rock, ____________________ is taking place.
A __________________ is a triangular feature that forms when a river enters another body of water.
Large mounds of sediment dropped parallel to the shore are called _________________ islands.
Are all beaches sandy?
When waves and currents deposit sand perpendicular to the shore, a feature called a _________ forms.
delta
barrier no
spit

11. Features formed where river meets ocean
water
waves
Moving ______________, in the form of _______________ and _______________, weathers, erodes, and deposits sediment to shape and reshape the many types of land features that form along a coastline.
currents

12. Deposition by water and wind
Alluvial
Like a delta, an __________________ fan is a triangular deposit, but it forms on land.
Although flooding can be dangerous to people living near a river, floods _______________ the soil on a floodplain.
__________________ __________________ happen quickly to change the land.
__________________ are depositional features that form when wind drops large volumes of sediment, such as sand and silt, in the same place.
enrich
Flash
floods
Dunes

13. Deposition by glaciers
______________________ are large masses of ice that move slowly over Earth's surface.
Till is _____________________ of any size that's dropped by a glacier, it is unsorted and can be any size.
Glacial _________________ are ridges full of till.
sediment
moraines

14. Alluvial fans Alluvial fan
An ____________________ ____________ forms when a stream quickly goes from a steep slope to flatter land. Over time, the stream forms a triangular deposit here.

15. Earth processes Weathering deposit
_______________________ is any process that changes a rock's size or its composition.
When agents of change (wind, water, gravity, and ice) stop or slow down, they drop, or ________________, the sediment to form a variety of land features.
deposit

16. Review reshaped change Weathering Erosion Deposition
The rocks that make up Earth's land features are continually __________________ by natural processes.
Water, ice, wind, gravity, and living organisms cause land features to constantly
_____________________________ is a natural process that can change and break down rock.
________________________ is the process by which the products of weathering are moved from place to place.
_______________________ is the process by which eroded materials are dropped.
change
Weathering
Erosion
Deposition