shifting earth - Plate Tectonics
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Objective: To discover how our planet it structured and how tectonic plates move and their resultant features.
Starter: Take a copy of the diagram to the right and paste it into a word document with the title and aim above. Add four text boxes, each pointing to a different layer. Choose the correct label from the four underneath and copy and paste them into the correct place. 
Task 1 - It is a good skill to be able to complete sketch maps in iGCSE Geography. To make your life a little more difficult, you are going to plot the information above but onto a blank Pacific Centred map of the world.
Task 2 - Label each of the plates and add the direction arrows and identify and label 'The Pacific Ring of Fire'. Task 3 - There are two types of 'earth's crust': i. Oceanic Crust ii. Continental Crust Using this link, explain the main differences between them both. On the Move - Continental Drift Task 4 - Watch the video to the right hand side and then have a play with this fantastic tool. Stop the video when you recognise any landmass e.g. North America. What period was that? Task 5 - Take a screenshot of now and 100 million years from now on the YouTube video. Annotate the major differences between now and in the future. Try to find at least five differences. How has the location of your home country changed? Why do we move? Task 6 - Study the cross section diagram to the right that shows a new feature - convection currents. Watch the quick video below too for extra explanation. Take a copy of the cross section to the right and then sort out the 8 statements below into the correct order underneath. Don't forget to add a title to your work. This process is known as 'convection currents' The rising and falling magma creates circular currents with the mantle The less dense magma then starts to rise towards the crust The cooling magma becomes denser and begins to sink As the magma warms it expands and becomes less dense. It is these currents that create friction with the crust above and causes it to move. Magma (semi-molten rock) near the outer core is heated. As the magma nears the crust it begins to cool. |
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plate Tectonics & Volcanoes
Objective: To link volcanic activity to plate boundary locations and to find out why some volcanoes are more violent than others.
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Task 1 - Watch the first 15 minutes of the YouTube video (Montserrat, Etna & Smoke Rings). This is a video featuring John Seach, a very famous vulcanologist. Here is his website (Volcano Live). Have a look at some of the videos he has taken - amazing!
Task 2 - Internet Based - Find the locations of the following volcanoes: a. Mount St Helens b. Cotopaxi c. Mont Pelée d. Eyjafjallajokull e. Mount Vesuvius f. Krakatoa g. Mount Pinatubo h. Unzen i. Mount Etna j. Nevado del Ruiz Plot and annotate the locations of these volcanoes onto this worksheet (or a Google Map) and complete the extra task too.
See if you can find Mount St Helens on Google Earth and take a 3D tour inside the crater! |
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Task 3 - Now using the second video above, complete a diagram with accompanying notes on how destructive plate boundaries can result in the formation of volcanoes.
Task 4 - Study this revision site from the BBC. Use the information to make a fact sheet showing the two main types of volcano. Include the following for each of the two types of volcano:
1. The features of the volcano (inside & out)
2. The type of eruption
3. A sketch (by hand) of the cross sectional shape
4. A photo of an actual example of this type of volcano with name and location added.
Task 4 - Study this revision site from the BBC. Use the information to make a fact sheet showing the two main types of volcano. Include the following for each of the two types of volcano:
1. The features of the volcano (inside & out)
2. The type of eruption
3. A sketch (by hand) of the cross sectional shape
4. A photo of an actual example of this type of volcano with name and location added.
plate Tectonics & Earthquakes
Objective: To understand where earthquakes occur in the world and the processes that cause the event to take place.
Starter - Watch the first video at the bottom of this section of work.
Task 1 - Using the three videos below and your own research, explain why earthquakes happen. Target 100 words.
Task 2 - Define the following two terms:
a. Focus of earthquake
b. Epicentre of earthquake
Find a good quality diagram showing the features above and include it in this section of work.
Task 3 - Highest Magnitude Quakes of all Time.
Click here to access the Wikipedia information on earthquakes and in particular the most powerful quakes of all time.
Plot the top 10 earthquake (by magnitude) locations onto the same sheet that you plotted the volcanoes on (from last lesson). Use a suitable symbol to show earthquakes.
Task 4 - How Deadly Are Earthquakes?
Scroll down the Wikipedia page to view the data for the most deadly earthquakes of all time.
What is the relationship between the magnitude of an earthquake and the death rate?
What other factors could be responsible?
Task 5 - The effects of an earthquake.
Use this revision page from the BBC to find out a little more about the effects of earthquakes.
i. Take a copy of the table and the contents from the first page. Don't screen shot, rather create a table in world with the Task 3 title and then copy and paste the information in.
ii. At the bottom of this page, there is a short paragraph about the primary and secondary effects of earthquakes. Do some additional Google research and then create a mini fact sheet showing a definition for Primary Effects & Secondary Effects and then list at least five effects for each, illustrated with photos if possible.
iii. Go to the next page of the Bitesize site and create a spider diagram showing the 'Factors Affecting Impacts of an Earthquake'. There are seven in total.
Starter - Watch the first video at the bottom of this section of work.
Task 1 - Using the three videos below and your own research, explain why earthquakes happen. Target 100 words.
Task 2 - Define the following two terms:
a. Focus of earthquake
b. Epicentre of earthquake
Find a good quality diagram showing the features above and include it in this section of work.
Task 3 - Highest Magnitude Quakes of all Time.
Click here to access the Wikipedia information on earthquakes and in particular the most powerful quakes of all time.
Plot the top 10 earthquake (by magnitude) locations onto the same sheet that you plotted the volcanoes on (from last lesson). Use a suitable symbol to show earthquakes.
Task 4 - How Deadly Are Earthquakes?
Scroll down the Wikipedia page to view the data for the most deadly earthquakes of all time.
What is the relationship between the magnitude of an earthquake and the death rate?
What other factors could be responsible?
Task 5 - The effects of an earthquake.
Use this revision page from the BBC to find out a little more about the effects of earthquakes.
i. Take a copy of the table and the contents from the first page. Don't screen shot, rather create a table in world with the Task 3 title and then copy and paste the information in.
ii. At the bottom of this page, there is a short paragraph about the primary and secondary effects of earthquakes. Do some additional Google research and then create a mini fact sheet showing a definition for Primary Effects & Secondary Effects and then list at least five effects for each, illustrated with photos if possible.
iii. Go to the next page of the Bitesize site and create a spider diagram showing the 'Factors Affecting Impacts of an Earthquake'. There are seven in total.
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