mock exam revision

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  • Created by: Karla l
  • Created on: 13-03-15 19:27
What does destrictive plate boundries mean?
It is when the plates move towards eack other
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What does constructive plate boundries mean?
Is when the plates move move away from each other in the oppisite direction
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What does conservative plate boundries mean?
It is when plates slide past each other causing friction
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What causes tectonic plates to move apart?
convection currents
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How are volcanos formed at the destructive plate boundaries?
Plate move together, friction is formed, oceanic plates start to melt, magma rises up through the gaps and then erupts
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How are volcanos formed at the constructive plate boundaries?
The plates move apart, volcanos are then formed as magma wells up to fill the gaps, eventually a new crust is formed
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Name the 4 layers of the earth
Crust, mantle, outer core, inner core
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Name 3 primary impacts that would happen if a volcano erupted
The hot gas and ash will destroy forests and woodland, people will die by poisonous gases, mudflows of ash
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Name 3 secondary impacts that would happen if a volcano eruped
Ash will block rivers killing fish and will cause flooding this will kill crops, flooding will destroy roads an railways, sediment will be carred in the stream
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How are earthquakes measured?
By seismometer. This detects vibrations and will be recorded on a seismograph
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Where do earthquakes occur?
Along plate edges and along the edge of the oceanicand continental plates
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What causes earthquakes?
When the plates slide past eack other and the underground rock snaps loose
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Name 3 primary effects of a earthquake
Building collapsed, people die, landslides
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Name 3 secondary effects of a earthquake
buliding destroyed by a fire, people are left homeless, sewage pipes are destroyed and spreads diseases
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What are the 3 p's of an earthquake?
Predict, prepare and prevent
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Name 3 examples how to prepare for an earthquake
have emergemcy first aid kits, have lots of tinned food and blankets
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Name 3 examples how to predit for an earthquake
warning signals, unusual weather predictions and look for gas
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Name 3 examples how to prevent a earthquake
Take tall heavy furnature down, hide under a table and if you are outside stay away from tall building
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Other cards in this set

Card 2

Front

What does constructive plate boundries mean?

Back

Is when the plates move move away from each other in the oppisite direction

Card 3

Front

What does conservative plate boundries mean?

Back

Preview of the front of card 3

Card 4

Front

What causes tectonic plates to move apart?

Back

Preview of the front of card 4

Card 5

Front

How are volcanos formed at the destructive plate boundaries?

Back

Preview of the front of card 5
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