# Chapter 4 coasts 4.1 & 4.2

Chapter 4
4.1 What causes waves and tides?
4.2 What work do the waves do?
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Slide 1: Tekstslide
AardrijkskundeMiddelbare schoolmavo, havo, vwoLeerjaar 2

In deze les zitten 33 slides, met interactieve quizzen, tekstslides en 3 videos.

Lesduur is: 50 min

## Onderdelen in deze les

Chapter 4
4.1 What causes waves and tides?
4.2 What work do the waves do?

#### Slide 2 -Tekstslide

When is the wave the largest?
A
Strong wind & small fetch
B
No fetch & weak wind
C
Large fetch & strong wind
D
Long fetch

#### Slide 3 -Quizvraag

What does prevailing wind mean?
A
a wind from the direction that is predominant or most.
B
wind causing big waves
C
wind that causes a tsunami
D
a preference

#### Slide 4 -Quizvraag

The prevailing wind in the United Kingdom and The Netherlands blows from...
A
the north
B
the south west
C
the south
D
the west

#### Slide 6 -Tekstslide

Waves are one of the most important features of the coastline. Rearrange the phrases
below to make a flow diagram to show how waves create a beach.

#### Slide 7 -Tekstslide

Pick the correct spot
Out at sea, the waves roll like this.
If the backwash has more energy than the uprush, the waves eat the land.
In a gale they can be over 30 m high
But at the shore they break
uprush
backwash
Waves are caused by the wind

#### Slide 9 -Tekstslide

What is the point of a groyne?
A
It's a resting spot for animals
B
Easy way to take trash out of the water
C
It's there to stop a tsunami
D
Stop the beach from being carried away

#### Slide 11 -Tekstslide

High tides occur about every ......... ,
with low tides in between. The drop
in sea level from high to low tide is
called the tidal range.
A
12,5 hours
B
8 hours
C
2 hours
D
24 hours

swash
pebbles
backwash
uprush
beach

0

#### Slide 14 -Video

Chapter 4
4.2 What work do the waves do?

#### Slide 16 -Tekstslide

Glossary
Weathering - The breaking down of rock; it is caused mainly by the water.
Erosion - The wearing away of rock, stones and soil by rivers, waves, wind of glaciers.
Transport - The carrying away of material by rivers, waves, the wind or glaciers

Erosion
Weathering

#### Slide 18 -Sleepvraag

Which processes happened at letters A, B and C?
Erosion
Transportation
Deposition
A
B
C

#### Slide 19 -Sleepvraag

To rub/rubbing
Wrijven

To hit/hitting
Raken

More of this in class 3. Not for now. Stick to the 2 Geo. book.

#### Slide 20 -Tekstslide

Weathering by hot daylight and cold nights
and freezing en defrosting of water.
Weathering by acids and chemical processes.
Weathering by plants.

Erosion by ice
Wind erosion
Water erosion

#### Slide 24 -Tekstslide

Waves continually carry material on and off the land. If they carry more ... than ... a beach forms!

swash
pebbles
backwash
uprush
beach

Paragraph 3

#### Slide 29 -Video

00:26
What type of Geo landform did you just see in this advertisement?
A
A cave
B
An arch
C
A stack
D
A stump

#### Slide 31 -Video

01:15
What type of Geo landform did you just see in this movie?
A
A cave
B
An arch
C
A stack
D
A stump