Examination Preparation Tips

This powerpoint is a must.... it will help you to answer the questions in the terminal examination!!

Examination Preparation

Mount St Helens - Case Study of a Volcano in an MEDC

Below is an amazing video made by one of the pupils from my previous school about this awesome eruption. I have checked with her and she is happy for me to show it off, the music in case you're wondering is called 'Requiem for a dream' by Clint Marshall and is from the film with the same title. Enjoy!!



Where is Mount St Helens
Mount St Helens is a volcano in the Cascades Mountain Range in Washington State in the USA.

Why is there a volcano at Mount St Helens
Mount St Helens sits on a destructive plate boundary. The oceanic Juan de Fuca plate is subducted beneath the less dense contintenal North American plate. As the Juan de Fuca plate is subducted it takes down with it ocean sediments and water which makes this volcano more explosive when it erupts. The Juan de Fuca plates melts due to the heat of the mantle and friction with the North American plate. The melting crust is less dense than the surrounding material and rises upwards into the magma chamber of Mount St Helens ready for an eruption.

What Happened?
8.32am on 18th May 1980 a 5.1 earthquake shook loose the northern flank of the volcano and the eruption began.
What were the effects? -(more specific facts can be found on the powerpoint and video)
Pyroclastic flow, lahars, dust and ash.
63 people killed.
All vegetation 21km north of the volcano was levelled.
Farming, fishing and logging industries destroyed.
Road and railway bridges on the Columbia River were washed away.
Spirit Lake was completely filled in.
What were the responses? - (see powerpoint and video)
Exclusion zone set up around the volcano
Aiports closed to prevent planes flying into the ash clouds and crashing
Volcano continues to be monitored
State of emergency declared

Mount St Helens New Ppt

One Child Policy

One Child Policy

This powerpoint is all about China's controversial One Child Policy.  It is an LEDC case study that can be used to look at how governments try and influence the birth rate as a way of controlling the population.  In our exam, we need to think about these methods and decide whether they are sustainable or unsustainable.

Hurricane Katrina Case Study

This WEBSITE from the BBC has lots of wonderful information about this Case Study. In particular you should look at this FORMATION of a hurricane link as you will be expected to know this in detail.

You will also need to know the following about the hurricane itself:

Formed: August 23rd, 2005
Highest Winds: 175mph
Fatalities: 1, 836
Damage: $300billion
Areas Affected: Bahamas, South Florida, Cuba, Louisiana, Mississippi, Alabama, Florida,
Most Affected City: New Orleans 29th August 2005

We now need to know about the IMPACTS of the hurricane, SOCIAL, ECONOMIC and ENVIRONMENTAL. These two powerpoints will help you to learn these important facts. Remember that the impact of this hurricane was made worse by the fact the New Orleans is below sea level and the storm surge from the category 5 storm caused the levees to collapse and this meant 80% of the city was flooded. If the powerpoints are not shown as embedded, as they are LARGE files, click on the links to view them. They can be downloaded and save if you choose!

katintro
Hard Times for 'the Big Easy'

A hurricane by any name......

The INFAMOUS hurricane song - just for you Year 11s and your revision!!

Enjoy Mrs C x

Welcome to the Priestlands School Geography Blog

This is a resource designed to help you with your revision, lots of the resources used in lessons will be on here, as will some revision case studies and some exam tips. Keep checking back and make use of this resource!!

Mrs C x