year 7 exam revision powerpoint - hbkportal.co.uk · this forms new crust and create volcanoes. ......
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Year 7 Test Revision
Use this PowerPoint in conjunction with your books to help you revise.
Managing Earthquakes and Volcanoes
Use this PowerPoint in conjunction with your books to help you revise
What do you need to revise?• Plate boundaries (constructive, destructive,
conservative)• How earthquakes and volcanoes form at each
plate boudary• Impacts of Mt St Helen’s volcanic eruption (on
people and environment)• Kashmir and Los Angeles earthquakes: impacts
explained (think about the difference between rich and poor countries)
• Reasons why people live near earthquakes and volcanoes
Plate boundaries
Plates meet in three ways:
• By moving apart (constructive)
• By moving together (destructive/collision)
• By moving past each other (conservative)
Kung Fu plate
Boundaries video
Plate boundary Diagram Explanation
Constructive Two plates move apart and magma rises up to fill the gap. This forms new crust and create volcanoes. Earthquakes can also happen as friction builds up when the crust moves over the mantle.
Destructive An oceanic and a continental plate move together and the heavier oceanic crust is forced/subductsunder the continental plate. The oceanic crust melts and creates new magma which then rises up through the continental crust to form a volcano. Earthquakes also happen here as friction builds up when the two plates move past each other.
Collision Two continental plates move together. Neither can sink so both are forced upwards to form mountains.
Conservative Two plates are sliding past each other (in opposite or the same direction) but at different speeds. This causes friction to then build up which is eventually released as an earthquake. No volcanoes happen here.
Kashmir/Los Angeles EarthquakeHow does being in a rich or poor country affect what the effects of an earthquake will be?
Why do people live near volcanoes and earthquakes?
Reasons
Tourism
Geothermal energyFertile soils
Too poor to move
Family links/tradition
Mining
Sacred placeDon’t care
Extreme Environments
You should use this PowerPoint in conjunction with your exercise book
to help you revise.
You need to know…
• Types of extreme environment (hot, col, dry and wet)
• Challenges/difficulties of living in extreme environments
• How to read a climate graph
• Plant and animal adaptations to hot/dry environments
Hot environments: adaptations
BBC Bitesize – adaptations
Adaptations
Plants
Buildings Animals
People
Plants
Wet environments: monsoon
• What are the impacts of a monsoon?
– Bangladesh and the positive impacts of a monsoon
When describing impacts don’t forget to develop the knock-on effects e.g. floods > schools are closed > education suffers.
• How do people cope with the monsoon rains?
– Adapting homes in Bangladesh
Dry environments: desert
• Deserts have very little rainfall but can be either hot or cold.
How to read a climate graph
Energy Revision
Use this PowerPoint in addition to your exercise book to help you revise.
What you need to know
• Types of energy (non-renewable & renewable)
• Carbon footprints
• Acid rain: causes, effects and responses
• Global warming: causes, effects and responses
Types of energy
Non-renewable Renewable
OilCoalGasNuclearWood
Non-renewable energy sources
SolarWindWaveTidalGeothermalBiomassWoodRenewable energy sources
Carbon footprints
Carbon footprint is the sum of all the greenhouse gases (e.g. carbon dioxide)that are created by a person, company, event or product.
• Make sure you know what they are and why we need to reduce our footprints
Carbon footprint revision website
Acid rain
• You need to be able to explain the causes, impacts and responses.
Acid rain revision website
Global Warming
• You need to know the causes, impacts and responses.
Global Warming - None like it hot!
Greenhouse Effect explanation
Japan Revision
• Use this PowerPoint in addition to your exercise book to help you revise.
What you need to know
• Locations in Japan
• Great East Japan Earthquake
• Tokyo: how it copes with so many people
Japan
You need to know the location of:HonshuHokkaidoShikokuKyushuTokyoSapporoOsakaHiroshimaMt Fuji Sea of Japan (East Sea)Pacific Ocean
Great East Japan Earthquake
You need to be able to explain:
• Causes
• Impacts (socio-economic and environmental)
• Responses
Causes
• Destructive plate boundary
• Pacific plate and Eurasian plate
• How it caused a tsunami (animated guide)
Effects and Responses
BBC News Report
Humanitarian Responses
Tokyo: how does it cope with so many people?
Tokyo Subway
Tokyo Swimming Pool on a Public Holiday
Capsule Hotel Room
Capsule Hotel Room costing roughly £20 a night
Vending Machines in Tokyo street
Doubled up parking spaces
Keeping cattle in Tokyo
Tokyo Petrol Station
Shinkansen (Bullet Train)
Toilet