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Revision for Y8 Geography All of these strategies have been shared during lessons. 1 - Use your exercise book to revise your keywords and definitions from your glossary. Use flash cards, mnemonics and spelling pyramids for the most difficult words. Keywords and definitions are available in the student area and are attached below. 2 - Make sure that you remember how to answer questions using PEEL and TEA. When writing a long answer question use PEEL: What is it? Make a POINT, support it with EVIDENCE, EXPLAIN how this supports it, LINK to the title/question/task. When responding to a graph/map/diagram use TEA What is it? Trend Evidence Anomaly How do we do it? There is an example below: Describe the distribution of volcanoes: TREND – What pattern is there? They are located in thin belts along the plate boundaries EVIDENCE – What evidence is there to support this? You should refer to the map (named locations) / graph (x and y axis) Eg along the edge of the Pacific Ring of Fire such as Mt Fuji in Japan. ANOMALY – Are there any examples which do not fit the patter? Eg Hawaii which is located in the centre of the Pacific Plate. Here is a graph you could practise with 3 – Make sure you know how to draw an annotated diagram to explain the formation of a tectonic or hydro-meteorological hazard and can explain its formation. 4 – Make sure you can draw an annotated sketch of the impacts of tectonic or hydro-meteorological hazards. 5 – You will need to know an example of a tectonic or hydro-meteorological hazard, its causes, effects and management. Hurricane Sandy is listed below 6 - If you have revision time with your form tutor use BBC bitesize Key Stage 3 to revise the natural hazards sections Key Topic Language Word Definition/ Notes Natural hazards Problems/risks which are naturally occurring eg volcanoes/hurricanes/avalanche Warm Word Tectonic plates Large pieces of the Earth’s crust eg the Pacific Plate Warm Word Volcano/Volcanoes Openings in the Earth’s crust Warm Word Earthquake Vibrations of the Earth’s crust Warm Word Plate boundary Where two (or more) tectonic plates meet Warm Word Inner core The centre of the Earth, 5,500’C, solid iron and nickel Warm Word Outer core The second layer of the Earth, liquid iron and nickel Warm Word Mantle The middle (and largest) layer of the Earth, molten rock Warm Word Crust The hard, outer layer of the Earth Warm Word Short term Things which happen immediately/straight away Warm Word Long term Things which have a longer lasting impact/effect Warm Word Fault A weakness in the rock Hot Word Epicentre The place on the Earth’s crust directly above the focus (the first area to experience the earthquake) Hot Word Focus The area where the earthquake begins (where the earth’s crust fractures/moves) Hot Word Oceanic crust The type of crust which is thinner, denser, basalt, newer (found under the oceans0 Hot Word Continental crust The type of crust which is thicker, lighter, granite, older (found where the land is) Hot Word Composite/strato volcano Tall, explosive volcanoes (usually at destructive plate boundaries) Shield volcano Low, wide volcanoes (usually at constructive plate boundaries) Hot Word Ocean trench Where oceanic crust is forced under (subducted beneath) the crust dips down creating a deep ridge beneath the ocean. Hot Word Magnitude The size/scale of something Hot Word Richter Scale How earthquakes are measured. (Logarithmic) Hot Word Tsunami A wave caused by an underwater earthquake Hot Word Fold mountain Mountains caused by the collision of tectonic plates, eg the Alps/Himalayas Scorching Word Where two plates move apart, eg the Mid Atlantic Ridge Scorching Word Where two plates move together and the denser oceanic plate is subducted beneath the lighter continental crust eg the east coast of Asia Scorching Word Where two plates slide past each other eg the west coast of North America Scorching Word Constructive plate boundary Destructive plate boundary Conservative plate boundary Collision plate boundary Word Level Hot Word Plate tectonics Where two plates collide eg Indo-Australian Plate and the Eurasion Plate – where the Himalayas have been formed The theory that volcanoes and earthquakes are caused by the movement of the crust due to convection currents in the mantle Convection currents Circular movement created by heat (magma is heated, rises, cools, sinks, repeats) Scorching Word Seismic wave The energy released by earthquakes Scorching Word VEI Volcano Explosivity Index – a scale to compare volcanic eruptions Scorching Word Hotspot An area where a hot plume from the magma has melted the crust above eg Hawaii Scorching Word Volcanologist Someone who studies volcanoes Scorching Word Seismologist Someone who studies earthquakes Scorching Word Scorching Word Scorching Word Key Topic Language Word Definition/ Notes Word Level Hydro To do with water Warm Word Meteorology The study of weather Warm Word Hurricane Rapidly rotating storm with winds of over 74 mph Warm Word Impact/effect Something which happens because of a hazard Warm Word Primary Something which happens immediately (as a direct result of a hazard) Warm Word Secondary Warm Word Economic Something which happens later (not as a direct result of a hazard) eg disease To do with money, jobs and earning a living Social To do with how we live our lives Warm Word Environmental To do with the natural world around us Warm Word Political To do with how something is run/organised/government Warm Word Climate change Where the Earth’s ‘usual’ weather is changing. Warm Word Management Control/reduce the risk of something Warm Word Extreme weather Weather which is out of the normal expected. Hot Word Greenhouse effect Where greenhouse gases trap the sun’s heat in the atmosphere and stop it escaping back out to space. This keeps the Earth at an inhabitable temperature Hot Word Meteorologist Someone who studies the weather Hot Word Tornado A violently rotating column of air stretching from the clouds to the ground Hot Word Correlation Link/relationship between things Cyclone The name of hurricanes in the Indian Ocean Hot Word Hot Word Depression Low pressure weather system Hot Word Typhoon Enhanced greenhouse effect The name of hurricanes in the Pacific Increase in greenhouse gases in the atmosphere trap more heat and the Earth warms. Hot Word Disaster When a hazard seriously affects humans Scorching Word Risk The likelihood humans will be affected and how severe this will be Scorching Word Disaster risk equation Risk = hazard (magnitude and frequency) x vulnerability (eg wealth and population density) Divided by capacity to cope Whether the population are able to manage the disaster eg search and rescue, preparedness, medical care Capacity to cope Warm Word Scorching Word Scorching Word Scorching Word Saffir-Simpson Scale Scale to measure hurricanes Scorching Word F-Scale Fujita Scale for tornadoes based on the highest amount of damage caused Scorching Word Tri-cellular model The division of the Earth’s atmosphere into 3 cells above and below the equator. Tropical Storm in MEDC: Hurricane Sandy 2012 When? October 2012 Where? New York, USA. What happened? The cost of repairing the damage was $60 billion The storm covered 1000 miles in diameter, effecting 24 states The three main airports were shut for 2 days The New York Stock Exchange had to close for 2 days Who? It killed over 285 people (109 directly) 2 million people were without power Why did it happen? The hurricane started in the Caribbean Wind speeds reached 80mph There was a large storm surge in New York Prediction, preparation and response: 50,000 Air Force and National Guard members were on standby President Obama declared everyone should evacuate – 1 million people did 5,000 flights were cancelled before the storm hit Bicycles were used in NYC to recharge laptops and mobile phones The Red Cross offered temporary housing to 11,000 people