Eruptions
Lava/Magma
Types
Landforms
Geothermal
100
Lava begin as magma located here
What is the asthenosphere
100
The physical property of magma that is the resistance of its ability to flow.
What is viscosity
100
layers of harden lava make up this type of volcano. The Hawaiian Islands are an example
What is a shield volcano
100
Volcanic soil is some of the most fertile in the world due to this
What is potassium and phosphorus which plant life needs to flourish
100
Geo and Thermal is Greek for
What is geo=Earth and thermal=hot. When magma is just a few kilometers below the surface heating underground water.
200
A pocket of magma
What is the magma chamber
200
Magma is made up of this compound
What is silica
200
This type of volcano is the result of ash, cinders and bombs that build up around the vent in a steep cone-shaped hill or small mountain.
What is a cinder volcano
200
This forms when magma hardens in a volcano's pipe
What is a volcanic neck
200
What type of energy can geothermal provide to people living in areas where there is volcanic activity
What is electricity
300
A bowl shape area that forms at the top of a volcano
What is a crater
300
The viscosity of magma depends on these two things.
What is temperature and silica content
300
This type of volcano is a mixture of lava, ash, cinders and bombs. Mount St. Helens is an example
What is a composite volcano
300
When magma forces itself across rock layers and hardens
What is a dike
300
These form when groundwater is heated by a nearby body of magma or by hot rock deep underground. The hot water rises to the surface and collects in a natural pool.
What is a hot spring
400
When a volcano erupts, the magma moves up the vent(s) due to this
What is the force of expanding gases from the magma chamber.
400
This type of lava has a high silica content, high viscosity, and a slow rate of flow
What is AA
400
A hole left by the collapse of a volcanic mountain
What is a caldera
400
When magma squeezes between horizontal layers of rock
What is a sill
400
When hot water and steam become trapped in an underground crack. Pressure builds sending the mixture up and out in an eruption of water and steam
What is a geysers
500
A mixture of gases, ash, cinders, and bombs
What is pyroclastic flow
500
Pahoehoe is lava with the type of viscosity, silica content, and rate of flow
What is low viscosity, low silica content and a fast rate of flow.
500
Building around this type of volcano would not be wise. It just might surprise you.
What is a dormant volcano
500
A large mass of rock formed when a large body of magma cools inside the crust. Forms the core of many mountain ranges.
What is a batholiths
500
What is the transformation of energy using geothermal energy to produce electricty
thermal energy in the form of steam is piped into a turbine. Mechanical energy turns the turbine which turns a generator and electrical energy is formed to be sent out through electrical lines.
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