Wave+Investigation+Lesson

Intro 5 mins Settle and Sort

5 mins video exploring waves

To describe two types of waves To explain the characteristics of each waves To explain the 3 major factors that effect wave formation To explain how these wave can effect the shape of the coastline in the United Kingdom

[|Match up Game]

__**Energy at the Coast**__


 * __Station 1__**

Energy at the coast To describe how waves are created To explain the effect of area over which wind blows on wave size

Task 1 Students given a problem without touching the water create wave bike pump / Blowing

Task 2 Take a deep breath all 5 of you and blow from the back of the wave tank 3 people blow from the middle of the tank 1 person blow very close to the beach

What difference do you notice? Why do you think this difference occurs? What force from the air acts on the water?

Task 3 Open the brown envelope explain why these factors are important

There are 3 main factors which will affect the strength of a wave and therefore whether it is more likely to erode or build up the coastline: (i) The strength and speed of the wind (ii) The duration of the wind (iii) The fetch - this is the distance over which the wind has blown and therefore how far the wave has travelled.

__**Station 2**__

Podcast. Audio about waves

Learning Objective to hit!

To describe two types of wave To explain the difference in the two waves To describe the three main factors that effect the size of the waves

Keywords

Waves Energy Wind friction drag rotate friction sea bed elliptical swash backwash constructive 8 per minute. Destructive wave 3 factors strength of wind, duration of wind fetch.

Each person given one word

Friction Swash Backwash Constructive Destructive

All remember 3 factors


 * __Station 3__**

Map showing coast of Britain and Map of world

There are 3 main factors which will affect the strength of a wave and therefore whether it is more likely to erode or build up the coastline: (i) The strength and speed of the wind - the faster the wind, the more energy is transferred and therefore the bigger the wave that is produced. (ii) The duration of the wind - this is the length of time for which the wind has blown - the longer the wind blows, the more energy is transferred to the wave (iii) The fetch - this is the distance over which the wind has blown and therefore how far the wave has travelled. The longer the fetch, the larger the wave is likely to be.

Discussion Question

How do these factors help to explain the difference in the shape of the coastline in the western and eastern part of the United Kingdom?

High Energy coastline on the west and low energy coastline on the east side

__**Station 4**__

Mini laptops

To explain how the three variable effect the type of waves

http://www.pbs.org/wnet/savageseas/multimedia/wavemachine.html


 * __Station 5__**

To describe the two types of wave To explain the main difference in the two types of wave

Plasticine make a constructive and destructive wave

How do you know the difference?

Keyword Check: Swash - the movement of water and material up the beach (in direction of prevailing wind) Backwash - the movement of water and material back down the beach (straight back down due to gravity Constructive wave - low energy wave with greater swash than backwash - tends to build up the beach Destructive wave - high energy wave with greater backwash than swash - tends to erode beach

Textbook

Copy notes into your book.

7 mins at each station