African
Indo-Australian Plate
North American
South American
Eurasian
Pacific
Nazca
Antarctic
Pacific
Plate names
Plate Boundaries.
First task- To find out what happens at the 4 different plate
boundaries.
Constructive plate boundary
Destructive plate boundary
Collision plate boundary
Conservative plate boundary
Task
• Label the key features at the four plate boundaries.
• Then cut them out and stick them into your books.
• Underneath each I want a sentence to explain what is happening– Which way are the plates moving.– What happens as a result.
Homework.
• To find out the date and location of a recent earthquake and volcano and the impact these had on human activity.
Plate definitions
Volcanic bombs, ash, lava, gases
Magma chamber
Parasitic cone
Crater
Main vent
Label this cross section of a volcano
Active volcano – liable to erupt.
Dormant (sleeping) volcano – a volcano which has not erupted for
many years
Extinct volcano – a volcano which has not erupted for many
thousands or millions of years
Types of Volcano
Composite Volcano Shield Volcano
Shield Volcano
• Occur at Constructive Plate Boundaries.
• Runny Lava that flows along way from the main vent.
• Gives the volcano gentle sides.
• Shield volcanoes almost never erupt violently due to the lava running free (no rocks).
Composite Volcanoes.
• Occur st destructive plate boundaries.
• Viscous (thick lava)
• The lava cannot flow far from the vent.
• Makes the volcano steep sided.
• Violent eruptions due to rapidly hardeneing rock which blocks vents and allows the pressure to build.
Dominoes.
• Lets test your knowledge so far.