Volcano Anatomy
Mountains
Volcano shapes
Eruptions
Affects of Volcanoes
100
Magma chambers.
What is reservoirs from which magma erupts?
100
An area of land that rises steeply from the land around it.
What are mountains?
100
An opening in Earth's crust through which molten rock, rock fragments, and hot gases erupt.
What is a volcano?
100
Relationship between silica and lava flow.
What is the more silica the slower the flow or the less silica the faster the flow?
100
True or false: Volcanoes only have negative affects.
What is false?
200
Lava
What is magma when it reaches earths surface?
200
This is the biggest structure of mountains.
What is mountain belts?
200
Volcano shape is determined by this factor.
What is magma composition?
200
This volcano has the most violent eruptions and reason.
What is composite and high silica which leads to built up gas?
200
Smallest rock fragments that can cause building damage.
What is ash?
300
The reason calderas form.
What is volcano eruption that leads to lack of magma in magma chamber to support top of a shield or composite volcano?
300
This causes mountains to grow taller.
What is they form quicker than they wear down?
300
This type of volcano is made of thin layers of hardened lava that are low in silica.
What is a shield volcano?
300
Two reasons why pyroclastic flow is dangerous.
What is speed and temperature?
300
Reason volcanoes can cause mudflows.
What is loose rocks and soil mix with water?
400
Difference between young and old mountains and reason.
What is young:steep and pointed; old: rounded and lower; reason:weathering?
400
This volcano has magma with the highest level of silica.
What is composite volcano?
400
Positive long term affect of volcanoes.
What is fertile soil?
500
Fault where fault-block mountains form and how.
What is a normal fault and form as lithosphere is stretched and pull apart?
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