Weathering, Erosion, and Deposition
Forming Landforms
Wind Erosion and Water Erosion
More Erosion
Maps
100
What happens to water in a rock as it freezes?
It expands and cracks the rock.
100
What causes a landslide?
Large amounts of rain, steep land, and gravity
100
Where will wind most likely cause erosion beaches or forests? Why?
Beaches because the wind blows the sand
100
Name the three types of erosion.
Wind erosion, water erosion, glacial erosion
100
When contour lines are close together, this means...
the mountain is steep
200
Mrs. Lawson placed a wooden board outside to show her students the effects of weathering and erosion. She says they won't be able to see any changes for several months. Why?
Weathering and erosion happen slowly over a long period of time.
200
Name a landform that is created by moving water. 100 points for every landform named!
Canyons, deltas, or meanders
200
Wind and water are the forces responsible for forming...
sand dunes
200
What type of water causes the most erosion?
flood or fast flowing
200
This is a 3-D representation of an area
a model
300
How does a floodplain form?
When a flooded river deposits soil and sand.
300
Name a landform that causes soil erosion as it scrapes against the land.
Glacier
300
What happens to soil and sediment along a river during a rainstorm?
It is washed downstream and deposited somewhere else.
300
Which type of weather causes a great amount of water erosion?
Floods
300
Name the parts of a topographic map.
Contour lines, contour intervals, title, date
400
How and where do deltas form?
Eroded sediment and sand is deposited at the mouth of a river
400
How are valleys formed?
Water erosion
400
Define deposition. Give an example.
Deposition is the depositing/dropping of sediment. One example is a river washing sediment and forming a delta.
400
What is the reason for planting grass over bare soil?
To keep the soil from washing away and prevent erosion
400
How is a profile view different than a topographic map? How are they similar?
They are different because the profile map shows a side view. The topographic map shows the top view and has contour lines and intervals. The are similar because both are flat (2-D), have a title, date, and name.
500
Which is not a force that can break a rock - mechanical weathering, condensation, or frost wedging? Daily double: Define frost wedging
Condensation cannot break a rock. Frost wedging is when water fills a crack, water freezes, expands, and breaks rock.
500
A deep, narrow valley with steep sides is...
a canyon
500
True or False - Gravity, slope and flowing water all affect soil erosion.
True
500
On our stream table experiment, what type of flow caused the most erosion? Why?
The flood because it was the most water and the fastest flowing.
500
How and why to scientists use models?
Models are miniture representations. They are less expensive to build and allow scientists to test their ideas before they build the real thing.
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