Weathering
Is weathering a slow change or fast change?
slow change
Is erosion a natural process?
Yes. Erosion is as natural because it is not caused by man.
The movement of soil or sediment from one location to another by way of water, ice, or wind
Erosion
How might water be able to create stalagmites?
A Freezing water can expand and push minerals
B Moving water can carry minerals away from caves
C Water that drips slowly can leave minerals behind
C - water that drips slowly can leave minerals behind
Which is the correct order of changing our landforms?
A. deposition, weathering, erosion
B. erosion, deposition, weathering
C. weathering, erosion, deposition
D. weathering, deposition, erosion
C. weathering, erosion, deposition
After weathering occurs, what 2 things are left over from the rocks that have been broken down?
dirt & soil
Which of the following is NOT an erosion processes?
A.Rocks broken down by crashing into other rocks.
B.Sand along a shore carried away by waves.
C. Small pebbles moved to a curve in the river.
D. Sand carried by wind in the desert.
A.Rocks broken down by crashing into other rocks is an example of weathering.
The breaking down of substances such as rocks or minerals by physical, chemical, or biological processes.
Weathering
What direction does erosion move earth materials?
upward or downward
Downward to lower elevation level, toward the ocean
Can erosion happen before weathering?
No, weathering must occur first, then the broken pieces are carried away.
The grand canyon is an example of what type of erosion caused by what force?
by water
Erosion can be caused by what forces?
1. Wind
2. Ice
3. Water
4. Gravity
Can weathering be stopped?
No
Deltas forming at the mouth of rivers is an example of _____.
A. Erosion
B. Deposition
C. Weathering
Deposition
What pulls pieces of rock downhill to create a landslide?
Gravity, often loosened by water
Which of the following changes to the Earth’s surface is mostly created by moving wind?
A Deep cracks forming
B Rocks getting rounded
C Large sand dunes moving
While driving along the highway 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
Can erosion be stopped?
no, but it can be slowed down
Water getting into cracks, freezing, and breaking the rocks or pavement apart is an example of _____.
A. Erosion
B. Deposition
C. Weathering
Weathering
How can a glacier change a mountain? A glacier can
A. Melt and cause water erosion
B. change the shape of a valley
C. Release steam which can melt Ice.
B - change the shape of a valley because the glacier can scrape away pieces of the earth as it moves
Weathering can't break down the Earth's crust.
False
Caves being formed by acid rain dissolving underground limestone is an example of erosion.
False
When particles carried by wind, water, or ice are dropped in another location.
Deposition
Rocks that are carried in a quickly moving river for a long time are most likely to be –
A long and thin
B large and flat
C smooth and rounded
C - smooth and rounded
What is deposition?
Deposition is when particles are carried by water, wind, ice, and deposited into a new location.