Weathering
Erosion
Weathering and Erosion
Do You Know?
Deposition
100
what happens during weathering?
when rock gets broken down by water, wind, ice, or gravity
100
What is erosion?
Erosion is the carrying away or moving rocks and sediment to a new location
100
When does erosion happen in the cycle?
A. before weathering
B. after weathering
C. after deposition
b. after weathering
100
What comes first, weathering or erosion?
Weathering
100
What is deposition?
When rocks and sediment are dropped or deposited in a new place.
200
what is an example of weathering caused by water?
answers will vary
200
What is an example of wind erosion
Wind blowing sand from a sand dune to another location
200
What is weathering?
Weathering is the process of breaking down and weakening sediments that will be moved by erosion.
200
What is one thing we can do to help slow down the erosion process?
plant grass or other plants to stop the washing away of soil; build seawalls; or put rocks on hills or between water and land
200
When does deposition happen in the cycle?
A. Before weathering
B. Before erosion
C. After weathering
D. After erosion
D.
300
What is an example of wind causing weathering?
answers will vary
300
Erosion can be caused by what 3 kinds of weathering?
1. Wind 2. Ice 3. Water
300
Why can't the cycle of weathering, erosion, and deposition be stopped?
The erosion cycle is part of nature. Humans can't stop it, but we can help slow it down.
300
On a drive one may notice the cement walls that are between the road by the Mississippi River. What is the purpose of this seawall?
To help block the pounding waves and protect the street and houses behind it.
300
What pulls pieces of rock or sediment down to a new location on the earth.
Gravity
400
What is the correct order of the 3 parts of the erosion cycle?
weathering, erosion, deposition
400
While driving along the highway in Louisiana, I noticed huge rocks along the highway. Large nets covered these rocks and seemed to go from the top to the bottom. Were these nets put in place to stop weathering or erosion?
erosion--to prevent rocks from falling down the cliff and hurting people
400
Give and example of water erosion
An example of water erosion is when a river pulls sediment and small rocks from the riverbanks and carries it all down stream to another place.
400
A restaurant on a steep hill grass puts a cement wall along the side of the building with large boulders. Why do they do this?
A. To improve the view
B. To keep the boulders from rolling down the hill
C. They keep the soil in place
D. They look nice
B
400
What is the difference between deposition and erosion?
Erosion takes broken rock and sediment and moves it to a different place.
Deposition is the dropping or depositing of the rock and sediment in the place.
500
Give an example of how weathering could be destructive.
Weathering may include violent storms, such as a hurricane, or flood.
Rocks, mud, or snow can collect and slide down the side of a mountain
500
Why is it important for us to learn about how weathering and erosion happen
If we know the process of weathering and erosion then we can help prevent them from happening by planting on hills and putting rocks securely in areas wher soil can erode
500
What is an example of ice erosion
An example is when a glacier scrapes rock and sediment as it moves down hill, and leaves it in a different location
500
Why do plants need soil?
Holds plants in place; provide plants with nutrients and water
500
A town planted grass and trees around a hill. What part of the erosion cycle were they trying to stop: erosion or deposition?
erosion