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WorksheetsVolcanoes and Eyjafjallajokull
Total questions: 11
Worksheet time: 6mins
Lava, as opposed to the Magma Chamber is an example of ...
Extrusive Volcanic Features
Igneous rock
Molten Rock
A Pyroclastic Flow
The presence of the mineral, Silica, makes lava ...
Thinner
Thicker
Redder
Hotter
We call lava with lots of Silica ..... Lava
Strong
Acid
Basic
Thick
Ash in the atmosphere blew across northern Europe and ...
People in Norway were effected by a pyroclastic flow
The sky went very dark
Caused planes to be grounded, and flights to be delayed
Volcanic Bombs reigned down on London
Magma Chambers are an example of ...
Igneous Rock
Lava
Intrusive Volcanic Features
Shield Volcanoes
Thick, acid lavas and ash falls make .... volcanoes?
Big
Shield
Pyramidal
Composite
Which element listed is not part of a Shield Volcano?
Lava
Ash
Side Vent
Crater
Shield Volcanoes are very broad. Why?
The lava is very dense and so gravity has a greater affect here
Very big explosions
They are formed in valleys and have opportunity to spread out
Thin, basic lava flows away from the vent quickly
When did Eyjafjallajokull erupt?
Between March and June 2008
Between March and June 2010
Between March and June 2020
Between March and June 2000
Eyjafjallajokull is a shield volcano, has thin lava, but erupted lots of ash. Why?
The vent of the volcano (lava tube) was blocked by solid rock
Lava had to melt through a glacier. Reaction with water caused ash
The atmosphere in Iceland was very cold
It was an anomalous eruption
Apart from the ash, what other threat did Iceland face (secondary effect)
Snow and ice was forecast which would've add difficulty
The capital was threatened by streams of lava
Being cut off from the rest of the world
Flooding from melting glacier
(Jokullhaups)
