What landforms do rivers create? (Part 2)
In this lesson, we will be learning about how meanders in rivers are formed. In order to do this, we will be looking at the process of erosion and deposition in more depth. We will also be learning about how an oxbow lake is formed.
What landforms do rivers create? (Part 2)
In this lesson, we will be learning about how meanders in rivers are formed. In order to do this, we will be looking at the process of erosion and deposition in more depth. We will also be learning about how an oxbow lake is formed.
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Lesson details
Key learning points
- What a meander is
- How a meander forms
- How an oxbow lake forms
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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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9 Questions
Q1.
What sort of erosion is the river doing in the upper course (closest to the source where it is flowing through hills and mountains)?
lateral (sideways) erosion
Q2.
Where does lateral erosion take place?
at the source
in the upper course (closest to the source where it is flowing through hills and mountains)
Q3.
What effect does the vertical erosion have on the valley?
it makes it wider
Q4.
What type of rock does the river find the easiest to erode?
more resistant (harder rock)
Q5.
What are interlocking spurs?
sections of rock that stick out, that the river has been able to erode easily
Q6.
Where does the river form a V-shaped valley and interlocking spurs?
Lower course
Middle course
Q7.
Which type of erosion helps form V-shaped valleys?
lateral (sideways) erosion
Q8.
The Horseshoe Bend in the Grand Canyon has been created by....
deposition
transportation
Q9.
The Nile Delta has been created by....
erosion
transportation
11 Questions
Q1.
Which type of erosion makes a river wider?
vertical (downwards) erosion
Q2.
What are big bends in rivers called?
deposition
erosion
mouth
source
Q3.
When water goes around a bend in a river, where does the water move the fastest?
inside of the bend
Q4.
When does a river have more energy?
when it is moving slowly
Q5.
When water goes around a bend in a river, where does deposition happen?
on the outside of the bend where the water moves fast
Q6.
Finish this sentence. As the meanders in a river get bigger, the neck of the meander becomes more _______.
fast
slow
wide
Q7.
What is the first stage in meander formation?
Deposition occurs on the inside of the bend
Erosion causes the bends to get bigger
Over time, the meander grows bigger.
Q8.
What is the second stage in meander formation?
Deposition occurs on the inside of the bend
Lateral erosion creates gentle bends
Over time, the meander grows bigger.
Q9.
What is the third stage in meander formation?
Deposition occurs on the inside of the bend
Erosion causes the bends to get bigger
Lateral erosion creates gentle bends
Q10.
What is the forth stage in meander formation?
Erosion causes the bends to get bigger
Lateral erosion creates gentle bends
Over time, the meander grows bigger.
Q11.
How is an oxbow lake created?
A meander becomes very deep and the river breaks through, creating an oxbow lake
A meander becomes very shallow and the river breaks through, creating an oxbow lake
A meander becomes very wide and the river breaks through, creating an oxbow lake