Transcript Managing Earthquakes and Volcanoes

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/subducts
under 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.
Mt St Helens
Mt St Helen’s song
Kashmir/Los Angeles Earthquake
How 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?
Too poor to move
Fertile soils
Geothermal energy
Don’t care
Reasons
Mining
Tourism
Sacred place
Family
links/tradition
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
People
Plants
Adaptations
Plants
Buildings
BBC Bitesize – adaptations
Animals
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
Oil
Coal
Gas
Nuclear
Wood
Renewable
Solar
Wind
Wave
Tidal
Geothermal
Biomass
Wood
Non-renewable energy sources Renewable 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:
Honshu
Hokkaido
Shikoku
Kyushu
Tokyo
Sapporo
Osaka
Hiroshima
Mt 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