GEOBYTES GCSE BLOG:
REMEMBER – for course notes, background reading and revision you should regularly refer to the GCSE GeoBytes blog which is written especially for Year 10 and 11 students studying for the OCR A GCSE Geography at St Ivo School – to find the relevant posts to the topics you are studying use the archive links or search facility.
YEAR 10 WEEKLY UPDATES:
25th January 2008 – REVISION FOR PLATE TECTONICS TEST
Homework for this week – Revision for end of unit test on Friday 8th February.
You will be having your end of unit test on Plate Tectonics next Friday – it is very important that you undertake detailed revision. I will go through some revision with you on Tuesday but to help you out see the following blog post with a summary of key ideas and revision resources. Also use the archive on the blog to look at the January 2007 posts on Plate Tectonics. Please see me / email if you have any questions.
15th January 2008 – Volcano Prediction Science
In today’s lesson we are look at volcano prediction science and how it is possible to monitor volcanoes – read this article from the GCSE Geobytes blog for more information and useful follow up links / examples.
14th January 2008 – Please remember that your Mt St Helens case study work is due in on Friday 18th January 2008 – for more details and links please see the homework entry below. Here is a brief video clip of the initial part of the eruption in slow motion – look at how the landslide releases the pressure and results in the actual eruption.
10th January 2008 – SPRING TERM – PLATE TECTONICS!
Welcome back Year 10! This term we are going to continue our work on Plate Tectonics. To remind yourself of what we looked at right at the end of last term have a quick read through the following blog posts on:
Continental Drift and the Structure of the Earth
Plates and Convection Currents
This week we have started our work on Volcanoes. For your work on this you must have studied a volcanic eruption and be able to describe in detail (including place specific details – i.e. facts and figures) the cause, effects, and human responses to the volcanic eruption. The example you are going to be studying is Mount St Helens.
MOUNT ST HELENS CASE STUDY HOMEWORK – due 21st January 2008
Using the information sheets and notes you made from the video in class you need to write a detailed article for a magazine with the title “Volcanic Fury – the 1980 eruption of Mt St Helens” – you must include labelled diagrams and pictures in your work and you need to make good use of geographical vocabulary.
Use the following sub-headings to help organise / structure your work and make sure you include the following points:
Where is Mt St Helens located? (try and include a simple sketch map_
2. Cause and Countdown to the Eruption
Why did the mountain erupt include diagrams to help your explanation here – think about plate boundaries and volcanic theory)
3. Countdown to disaster, how did ti erupt?
4. What action did the local authorities take in preparation for the disaster?
Effects of the eruption
What were the effects of the eruption on:
– the local area
– the local people
– the local economy
you will need to be specific here – add facts and figures where possible.
Continuing to live near Mt St Helens
6. How did people respond to the volcanic eruption (before / after)
7. Why do you think people continue to live in this area today.
As well as your class notes from the video and the information sheets there are also some good online resources to help you:
Mt St Helens Case Study (GeoBytes GCSE Blog)
Mount St Helens National Volcanic Monument
1980 eruption of Mount St Helens
The many faces of Mount St Helens
USGS – Mount St Helens eruption
Mount St Helens Timeline
Case Study of the 1980 eruption of Mount St Helens
3rd December – Rivers Revision Resources:
You have your end of unit Rivers Test on TUESDAY 11th DECEMBER 2007 – Revision is essential – make sure you revise process and landform and the flooding case studies!!
The following pages will help you with summary notes, quizzes and animations to support your revision:
- Rivers Revision Checklist and Games
- The Hydrological Cycle
- The Drainage Basin
- Rivers – Source to Mouth
- River Processes
- Upper Course of the River – V-Shaped Valleys
- Upper Course of the River – Waterfalls
- Middle Course of the River – Meanders and Ox-Bow Lakes
- Lower Course of the River – Floodplains and Levees
- Hydrographs and Rivers
- Flooding in an LEDC – Bangladesh 1998
- Flooding in an MEDC – Lynmouth 1952
- Comparing Flooding in an MEDCs and LEDCs
10th October 2007 – Coasts Revision
Please remember that your Year 10 Coasts Tests is on Tuesday 18th October. This is an hour’s test in the lesson and will be undertaken in exam conditions. You will have 2 exam questions which are taken from past papers.
Homework: REVISION FOR END OF UNIT TEST ON TUESDAY 18th
Think about what we talked about in lesson in relation to revision strategies. Different people revise in different ways but there are lots of ways of actively revising and there are lots of revision resources for you online.
1. Read through this page and recap what we have done in class – see any powerpoint presentation / links that have been added.
2. Use the GeoBytesGCSE Blog Revision Posts – there are LOTS of materials here including quizzes, games, podcasts, notes, downloadable flash cards etc.
For revision resources see – COASTS REVISION POSTS
There are also posts on each of the key concepts we have covered
- Coasts – Energy at the Coast
- Coastal Processes – Erosion, Transport and Deposition
- Coastal Erosion Landforms
- Coastal Deposition Landforms
- Case Study of Coastal Erosion – Dunwich
- Coastal Defence
8th October 2007 – Dunwich and Aldeburgh – Case Studies (Erosion & Defence)
I hope you enjoyed last week’s trip to Dunwich/Aldeburgh – you are certainly to be complemented on your excellent behaviour and you gave some super answers to questions during the course of the day – well done! Keep an eye out on the board in the corridor for photographs of the day!
A Case Study of Coastal Erosion – Dunwich
Today we are going to go back over what you saw last Tuesday, and for those of you that didn’t come – here is your chance to find out about Dunwich! Remember Dunwich used to have a population of about 4,000 and had 8 churches. Today there is little more than a few houses as much of the old city has been ravished by coastal erosion and now lies out to sea on the sea bed! So is Dunwich Doomed? Why is the area affected so badly by coastal erosion?
This is an important case study for you to learn for your GCSE. To find out more and to recap what we looked at in today’s lesson:
- See this post on the GCSEGeoBytes blog – it includes a podcast on the Dunwich Case Study
- See the powerpoint from today’s lesson – this should be useful when it comes to revision!
Coastal Defence at Aldeburgh.
It is IMPORTANT that you learn the different types of coastal defence which are available. Remember we can divide coastal defences into (i) Hard Engineering (groynes, sea walls, revetments, rip rap, gabions) and (ii) Soft Engineering (beach replenishment/nourishment, salt marsh and sand dunes) – these defences have both advantages and disadvantages.
As well as understanding the differences between types of coastal defence you need to make sure you are aware of the reasons for differences in the extent of coastal defence between different places – i.e. why are some stretches of coastline fully protected from erosion and others aren’t?As Dunwich is so prone to coastal erosion and as there is so little there to protect, it is not cost effective for coastal defence measures to be put in place and very little has been done as coastal defence systems are very expensive. In February 2007, small scale defence plans were established and small humps were established along the beach to stabilise the beach and protect the coastline at a cost of £71,000 . Unfortunately the scheme has not proved very successful and the coastline here remains very much at threat.
Further south down the coast, the town of Aldeburgh is also affected by coastal erosion and the threat to the town is well documented. Here however, as the town is much larger and of more economic signficance with a thriving tourist industry, a marina and many important historic buildings, money is being invested in sea defences in order to protect the area. Orford Ness spit which extends down from Slaughden (just south of Aldeburgh) is in danger of being cut off if continued erosion at Slaughden continues and annual beach replenishment takes place along this stretch. Groynes, Rip-Rap and a Sea Wall are also in place to protect this stretch of coastline.
There is an interesting short essay here on the reasons for the differences in sea defence between Aldeburgh and Dunwich – this is well worth reading and maybe even taking summary notes to put in your book for revision – it is a great example!!
1st October 2007 – COASTAL DEPOSITION
I will not see you in lessons this week as alot of you are coming to the coast with me on Tuesday, whilst I am at the coast with Year 12 on Friday so I will not be able to be with you. I will be leaving you some revision activities to get you ready for the forthcoming end of unit test on Coasts which will be on Tuesday 16th October 2007. I will post some revision resources to help you next week, but for now here is a quick recap of what we looked at during last week’s lesson on coastal deposition features. There are some useful links and animations here which should help you develop your understanding.
Remember – coastal deposition occurs when waves lose energy and therefore drop the material that they are carrying. Remember when deposition occurs, largest material is deposited first, this is because it needs the most energy to be transported.
There are 4 main types of coastal deposition features. A detailed overview of these features, examples and how they form can be found here on the GCSEGeoBytes Blog.
The Main Deposition Features are:
1. Beaches – made up of material (sand/shingle) lying between the high and low tide mark
2. Spits – these are ridges of sand and shingle projecting out from the land into the sea
3. Bars – these are ridges of sand and shingle which have cut off a bay or river mouth. Behind the bar is often found a lagoon.
4. Tombolo – these are ridges of sand and shingle joining the mainland to an island.
Remember – you must learn named and located examples of coastal deposition features:
Beaches e.g. Lowestoft (Suffolk) or Great Yarmouth (Norfolk)
Spits – e.g. Spurn Head (Holderness Coast); Orford Ness (Suffolk); Blakeney Point (North Norfolk)
Tombolo – Chesil Beach, Dorset
Bar – Slapton Sands (Devon) – remember the lagoon behind Slapton Sands is called Slapton Ley
Practice distinguishing between your case studies of Coastal Erosion and Deposition features by playing the Coasts Dustbin Game (simply click proceed to play)
25th September 2007 – LONGSHORE DRIFT
In today’s lesson we looked at the main transport process at the coast which is known as Longshore Drift – this is the movement of material along the coast by the waves in a direction controlled by the prevailing wind. You can find a more detailed account of longshore drift and a diagram in this post on Coastal Processes on the GeoBytesGCSE Blog.
To remind yourself of how Longshore Drift works, watch the following short clip – also look at how longshore drift can increase erosion in an area by removing the sand and shingle which would have protected the base of the cliff from erosion – this is a real problem in some areas and we will explore this further in future lessons.
Week 4 – Week beginning: 24th September 2007
This week we will be studying the main transport and deposition processes that are active along the coast and the features that result. Check back later in the week for notes and links to support the work you have completed in class.
Week 3 – Week beginning: 17th September 2007
COASTAL EROSION FEATURES
Set: Friday 21st September Due in: Friday 28th September 2008
Task: Imagine you work for the Dorset County Council Tourist Department – you have been requested to produce an informative tourist guide for use along the section of pathway between the Foreland (GR 055825) and Anvil Point (GR 028767) . You will need to make good use of the OS map extract and produce a well presented guide apporpriate for walkers / tourists using this stretch of the coastline.
Resources to support you with your homework:
- Task Sheet – you can download a copy of the sheet given out in class
- Jurrasic Coast World Heritage Site
- The Dorset Coast Path
- Swanage Online – Old Harry Rocks
- Swanage Online – Tilly Whim Caves
- Swanage Online – Durlston Bay
- Images of the Dorset Coast
- Old Harry Rocks and Ballard Point
- Dorset Coast Digital Archive
- The complete guide to the Dorset Coast – The Independent
Coastal Erosion Features:
Coastal erosion processes such as hydraulic action, solution and abrasion are active in creating distinctive features along the coastline. You must make sure that you learn the coastal erosion features affecting the coast. You then need to make sure you learn how the following coastal erosion features form:
1. Headlands and Bays
Specific examples include:
- Swanage Bay (Dorset Coast)
- Studland Bay (Dorset Coast)
- The Foreland (Dorset Coast)
- Flamborough Head (Yorkshire)
2. Cliffs and Wave-cut Platforms
Specific examples include:
- Hunstanton Cliffs and wave-cut platforms (Norfolk)
- Flamborough Head (Yorkshire)
3. Erosion of a Headland (caves, arches, stacks and stumps)
Specific examples of features include:
- Old Harry (Stack) – Dorset Coast
- Old Harry’s Wife (Stump) – Dorset Coast
- Durdle Door (Arch) – South Dorset Coast
Week 2 – Week beginning 10th September 2007
THE COAST – ENERGY AT THE COAST & THE COASTAL SYSTEM
Welcome to Year 10 Geography! You will find out more about this blog in next week’s lessons when we start using it for homework, but for now try out the following links to our GeobytesGCSE blog to read up and remind yourself on the key points we have covered over the last 3 lessons!
Homework Week 2
Set: Tuesday 11th September 2007 Due in: Friday 14th September 2008
TASK: Complete the following key terms on your Glossary sheet – learn key terms and definitions ready for quick test on Friday 14th September. Key terms to learn: constructive waves, destructive waves, erosion, attrition, hydraulic action, corrosion, corrasion, swash, backwash, deposition
Lost your Glossary Sheet? – download one in word format here.
WELCOME TO GCSE GEOGRAPHY
Welcome back Year 10 and welcome to GCSE Geography. This is the my personal blog for my classes and I will use this to help provide you with background resources and links to support you with homework, classwork and revision throughout the course. We are studying OCR A GCSE Geography. The course is made up of 3 components – 2 exams (Papers 1/2 – worth 50% & Papers 3/4 – worth 25%), the third component is the coursework which is worth 25%. The GCSE can be sat at two tiers – Foundation Paper (Papers 1 and 3) and the Higher Paper (Papers 2 and 4) – no decision is made on which you will sit until Year 11 and the decision will be made in discussion with yourself and your parents / carers. As well as this blog which is written just for our class – you should also be making good use of the GeoBytes GCSE blog which is written especially for all students at St Ivo studying GCSE Geography – it contains a detailed overview of all the topics covered – including summary notes, background links, revision resources and podcasts.