Volcanoes Flashcards
what is a volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/748/q_image_thumb.png?1580402380)
an opening in the Earth’s crust
allows hot magma, ash & gases to escape from below the surface
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/748/a_image_thumb.png?1580402381)
Which two plate boundaries create volcanoes
constructive (move apart)
&
destructive (move underneath)
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/751/a_image_thumb.png?1580400103)
What is a hotspot
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/752/q_image_thumb.png?1580400300)
at the centre of a plate where magma rises through the crust to form volcanoes
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/752/a_image_thumb.png?1580400318)
Where and what is the magma chamber
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/753/q_image_thumb.png?1580400799)
large underground pool of magma
beneath the volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/753/a_image_thumb.png?1580400825)
What is the crater
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/754/q_image_thumb.png?1580400542)
opening of the volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/754/a_image_thumb.png?1580400534)
What is a volcanic cloud
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/764/q_image_thumb.png?1580400575)
Gas, steam & ash escaping the volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/764/a_image_thumb.png?1580400711)
What are volcanic bombs
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/790/q_image_thumb.png?1580400645)
Large pieces of rock thrown from the volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/790/a_image_thumb.png?1580400677)
What is the main vent
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/791/q_image_thumb.png?1580400969)
central tube which magma rises through
to the top of the volcano
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/791/a_image_thumb.png?1580401038)
What is the secondary vent
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/793/q_image_thumb.png?1580401105)
opening on the side of the volcano
allowing magma to escape
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/793/a_image_thumb.png?1580401152)
Why does magma escape from the
secondary vent
a really high build up of pressure
What does it mean when a volcano is inactive?
It won’t erupt
What physical structure can volcanoes form?
islands
like Hawaii, Galapagos, Canary islands
![](https://s3.amazonaws.com/brainscape-prod/system/cm/389/091/797/a_image_thumb.png?1580400403)