Year 9 Core Socrrative 2

Question 1

When are v shaped valleys produced

Answer 1

As the river erodes its bed

Question 2

Why does the river only have enough energy to erode downwards

Answer 2

Because the rivers discharge is low in the upper course

Question 3

What happens slowly on v shaped valleys

Answer 3

The valleys sides are slowly broken down due to weathering

Question 4

How are the valleys made steep

Answer 4

The weather material is transported towards the river channel

Question 5

What are interlocking spurs

Answer 5

They are land that altérantes from either side of a v shaped valley

Question 6

Where are waterfalls found

Answer 6

In the upper course of the river

Question 7

What does the river flow over

Answer 7

The river flows over soft and hard rock eroding the soft rock quicker

Question 8

What sticks out causing a step to form

Answer 8

Hard rock

Question 9

What will happen to the step after a while

Answer 9

It will collapse

Question 10

What are meaders

Answer 10

They are sweeping bends in a river made by a process of deposition and erosion

Question 11

What happens in the inside of the bend

Answer 11

Deposition

Question 12

What happens on the inside of the bend

Answer 12

Erosion

Question 13

What are oxbow lakes

Answer 13

When one river splits into a river and a lake

Question 14

What happens overtime in oxbow lakes due to erosion of the river cliff and the deposition of the slip off slope

Answer 14

It gets narrower

Question 15

What happens to the oxbow lake after heavy rain or flooding

Answer 15

The river gains energy and bursts through

Question 16

What happens to the oxbow lake after further deposition

Answer 16

It will cut of the loop and creates an oxbow lake

Question 17

What are floodplains

Answer 17

When water is absorbed into water and silt is on top of it

Question 18

What’s a lève

Answer 18

A natural embankment of depositioned material sometimes strengthened to protect the surrounding area from floods

Question 19

What’s flooding

Answer 19

When a river has to much water in its channel and it floods its surrounding lands

Question 20

Name 2 physical causes of flooding

Answer 20

Heavy rain snowmelt

Question 21

Name me the two causes of human flooding

Answer 21

Deforestation and urbanisation

Question 22

What’s it called if the rain can’t soak into the ground

Answer 22

impermeable