Plate tectonics

For a very detailed and informative explanation of plate tectonics and the structure of the earth try these two links on the Moorlands School website.
For some beautiful satellite images of volcanoes have a look at the NASA site.

Map skills

If you need to revise your map skills follow this link for help.
You can then try out one of the Ordnance Survey's tests on their excellent website. You can do them on directions, scale, symbols and grid references. Take a test and if you do well enough you can play a game too.
Here is a useful link to the symbols used on a 1:50,000 OS map. You will also find the symbols in the back of your text book.

Tsunami

A tsunami is a giant wave or series of waves caused by an earthquake or volcanic eruption on the seabed. On December 26, 2004 an earthquake of around 9 on the Richter Scale off the north-western coast of Sumatra in Indonesia caused a tsunami that devastated coastal areas of Indonesia, Sri Lanka, Thailand, Southern India and Indian Ocean islands.

Here are two videos that show the terrible consequences of this phenomenon.

Madrid project

Here are a few resources that might come in handy for your research for the Year 7 Madrid project:

Local Authority information on the economy of the city.

The physical geography of the Madrid region.

A Wikipedia article on Madrid.

Google map.

The Madrid metro.

San Francisco earthquake project

You will find plenty of useful information to help you with your San Francisco earthquake reports at the following websites:

A US Geological Survey report on the 1906 earthquake.

There is a stack of useful information on both the 1906 and 1989 quakes at the Virtual Museum of San Francisco.

A BBC report on the 1989 earthquake.

There are some eye-witness accounts of the 1906 eruption at this website.

Accounts from the survivors of the 1989 earthquake.

For general information on San Francisco try the city's official website.

And here is some old newsreel footage of the 1906 earthquake

Mount St Helens eruption, May 1980

After nearly 200 years of inactivity, Mount St Helens in Washington state in the USA erupted in May 1980. The explosion, which was estimated to have the equivalent power of 500 atomic bombs, killed 57 people in this sparsely populated area and had a devastating effect on local wildlife, destroying thousands of deer, elk and bear as well as countless birds and small mammals. For further details on the eruption look at the following website.

Here is an informative video on the eruption and a useful animation about how volcanoes are formed.

Volcanoes

We will be starting a new topic on earthquakes and volcanoes in Year 8. So here are a selection of videos to provide a taster of what we will be studying.

The Aral Sea - environmental catastrophe

The Aral Sea was once the world’s fourth biggest inland sea, but misuse of its water has caused it to shrink by two-thirds and scientists predict that it will dry up altogether in little more than 10 years wreaking havoc on the climate, environment and people who live in the area. Watch a video about it here.

Located in the former Soviet republics of Kazakhstan and Uzbekistan, the Aral Sea disaster began when the government ordered the water from the rivers that supplied the sea to be diverted so that vast areas of cotton fields could be irrigated. The use of the water meant the sea could no longer be replenished and began to dry up leaving beds of salt polluted by high concentrations of pesticides that were used by the farmers when growing the cotton.

The fishing industry that once thrived on the sea has been destroyed and the climate has changed with drier summers and colder winters. Old fishing boats are now stranded in a desert landscape some 80 kilometres from the shoreline.

The chemicals have caused a dramatic increase in illness with extremely high infant mortality rates. Death from chronic gastritis and kidney disease has increased by 15%, heart disease has doubled and cancer has increased by 1000% (cancer of the oesophagus is the highest in the world, while the death from tuberculosis is 21 times higher than it was in the 1960s. There is also evidence that local people are suffering genetic damage.

But despite warnings of the catastrophe, Uzbekistan continues to rely on the production of cotton.

See some images of the way the sea has almost disappeared can be seen here.

Pollution song

Here is another Geography-related song, this time about pollution. It was written by American satirist Tom Lehrer in the 1950s and 1960s but is still relevant today.

When the Levee breaks

When the Levee Breaks is a blues song written and first recorded by husband and wife Kansas Joe McCoy and Memphis Minnie in 1929. The song was written in response to the devastation caused by the Great Mississippi Flood of 1927. You can hear it here.

British rock group Led Zeppelin recorded their own version of the song in 1971.

You can read more on the flood and see some photographs of what happened here.