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1.3 Rock is moved
1.3 Rock is moved
Part 1
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Slide 1:
Slide
Aardrijkskunde
Middelbare school
vmbo t, mavo, havo, vwo
Leerjaar 2
This lesson contains
28 slides
, with
interactive quizzes
,
text slides
and
1 video
.
Lesson duration is:
45 min
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Items in this lesson
1.3 Rock is moved
Part 1
Slide 1 - Slide
Slide 2 - Video
Learning goals
- you know what mass movement is.
- you understand the role erosion plays in changing the landscape in mountain ranges and recognise river and glacier valleys.
- you can explain the differences between river gravel, sand and clay.
Slide 3 - Slide
Grab your notebook and go to the assignments side.
What do you see in the picture?
Try to explain each concept.
Slide 4 - Slide
Slide 5 - Slide
A glacier is wide and therefore also erodes a wide valley. The valley takes the shape of a U; a U-valley.
Different with a river, which makes a much narrower valley: a V-valley.
Slide 6 - Slide
U-Valley:
Formed by glaciers.
Erosion side and bottom.
V-Valley:
Formed by rivers.
Erosion at the bottom (fastest current).
Slide 7 - Slide
U or V?
V-dal
U-dal
Slide 8 - Slide
U or V?
U-dal
V-dal
Slide 9 - Slide
U or V?
V-dal
U-dal
Slide 10 - Slide
Slide 11 - Slide
Falling Rocks
Slide 12 - Slide
Mass movements due to gravity
Slide 13 - Slide
Mass movement
Slide 14 - Slide
Mass movements:
Weathered material moves down a slope.
Material can roll, slide and fall.
Type of movement depends on:
1. How steep the slope is.
2. The size of the rock
Slide 15 - Slide
Make ex 2
Slide 16 - Slide
1.3 Rock is moved
Part 2
Slide 17 - Slide
Learning goals
- you know what mass movement is.
- you understand the role erosion plays in changing the landscape in mountain ranges and recognise river and glacier valleys.
- you can explain the differences between river gravel, sand an clay.
Slide 18 - Slide
Erosion + from gravel to clay
Slide 19 - Slide
Erosion affects, among other things, stones
Weathering and erosion cause the solid rock to fall apart further and further
Slide 20 - Slide
Set the soil types from coarse to fine
Coarse
-----
-----
-----
-----
Fine
---->
Clay
Sand
Gravel
Rocks
Solid rock
Slide 21 - Drag question
Gravel
Clay
Sand
Rocks
Solid Rocks
Slide 22 - Slide
What is a gletsjer?
A
ice mass that scours out a valley
B
ice mass that scours out a v valley
C
A mountain thing
D
ice mass in high mountains that slowly shifts
Slide 23 - Quiz
What is gravel?
A
rounded stones due to the erosion of a river
B
the smallest grains
Slide 24 - Quiz
An exogenous force is erosion, what is needed for erosion?
A
Wind, water or ice
B
Material in wind water or ice
C
High temperatures
D
Stone
Slide 25 - Quiz
With erosion
A
rock falls apart into small chunks
B
weathering material is carried away by wind, water or ice due to an abrasive action
C
dissolves rock in water or acids
D
rock is left behind and accumulates
Slide 26 - Quiz
What are gletsjers?
A
Snow that never melts
B
a mass of ice that moves
C
The mountain peaks
D
a licked soft ice cream cone
Slide 27 - Quiz
Make ex
1, 3, 5 and 6
Slide 28 - Slide
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