What do you call a fan-shaped landform where sediments are deposited?
Delta
100
What was the primary cause of the formation of the Grand Canyon?
Erosion by water
100
What is a u-shaped lake created by the pinching off of a meander in a river called?
Oxbow lake
100
How are oxbow lakes formed?
by a change in the river’s path, leaving some water separated from the river
100
How does water help break apart rock?
Freezing and expanding
200
What is a meander?
A curve or loop in a river
200
What are causes of weathering and erosion?
Water, wind, gravity, ice
200
Which type of map shows the elevation of large landforms?
A topographic map
200
How could you slow wind erosion down?
increasing the quantity of trees and grass on the land
200
What river runs through the Grand Canyon?
Colorado River
300
Which force causes sand dunes to form?
Wind erosion
300
Why do rivers deposit sediment near oceans?
because the speed of rivers decrease near oceans
300
How is a delta most likely formed?
Deposition of sediment
300
How can sea breezes change the landscape at the beach?
by moving sand to different locations
300
Which best describes how a plateau can be changed into a canyon?
erosion by a river over long periods of time
400
Rivers and glaciers can erode the land to form V-shaped or U-shaped landforms. What are these landforms?
Valleys
400
How is erosion different from deposition?
Erosion is the breakdown and removal of soil and deposition is when earth materials settle in another place
400
Topographic maps help us to study the slope and elevation of this particular type of landform?
Mountain
400
What is the order of sediment after it is shaken in a vial of water (sand, clay, gravel)?
Gravel, sand, clay
400
At which part of a river’s meander is erosion greatest?
on the outside of the river bend
500
What is it called when a river or stream flows into a greater river or lake?
Tributary
500
Why are floodplains fertile areas for growing crops?
When rivers flood, sediment is deposited along their banks. The sediment makes the soil fertile.
500
What is the difference between a topographic map and a shaded relief map?
A topographic map shows changes in elevation using contour lines. A shaded relief map shows changes in elevation using different colors or shades of colors.
500
Which would most likely cause a landslide on a mountain (land, not mud)?
Gravity
500
How are floodplains different from deltas?
Floodplains may be located anywhere along the river, while deltas are located only at the mouth of the river.