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WHAT ARE THE CAUSES OF TECTONIC HAZARDS? 1 Structure of the Earth Find/draw a labelled cross section through the earth showing the different layers (asthenosphere, etc) Find/draw a diagram and write a paragraph to show how convection currents work. 2 Theory of plate tectonics Write about Alfred Wegener’s idea of continental drift What evidence is there that continental drift takes place? Describe what is meant by ‘plate tectonic theory’ 3 Types of plate boundary Find/draw 5 annotated cross-sectional diagrams and write notes to show the processes and landforms that occur at the 3 types of plate boundaries: Convergent (destructive – oceanic and continental plates) Convergent (destructive – oceanic and oceanic plates) Convergent (collision zone – two continental plates) Divergent Transform 4 Map of plates and plate margins Find/draw a map of plates and plate boundaries. Use a key to distinguish between the different plate boundaries Label/find a map to show the global distribution of earthquakes and volcanoes Write at least half a page summarising the main patterns your map shows 5 Glossary of terms Start to create a glossary of key terms: - Ash falls - Asthenosphere - Benioff zone - Elastic rebound - Epicentre - Focus (also explain the difference between shallow and deep focus earthquakes) - Gas eruptions - Ground shaking - Hotspots - Intra-plate earthquake - Jokulhlaup - Lahars - Landslides - Lava flows - Liquefaction - Magnitude - Paleomagnetism - Pyroclastic flows - Richter scale - Sea floor spreading - Slab pull - Subduction zone - Tectonic plate - Waves: P, S and L Websites – a useful starting point National geographic videos on all tectonic activity, http://environment.nationalgeographic.com/environment/natural-disasters/ Uni British Columbia teaching on all aspects of tectonic activity http://www.physicalgeography.net/fundamentals/chapter10.html Volcanoes (USGS) - https://volcanoes.usgs.gov/vhp/hazards.html Cool Geography - http://www.coolgeography.co.uk/Alevel/AQA/Year%2013/Plate%20Tectonics/Tectonics.htm USGS tectonics for beginners: http://geomaps.wr.usgs.gov/parks/pltec/ BBC animations: http://news.bbc.co.uk/1/hi/sci/tech/4126809.stm Continental drift theory - http://www.livescience.com/37529-continental-drift.html