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Volcanoes and Plate Tectonics
Properties of Magma
Volcanic Eruptions
Volcanic Landforms
Potpourri
100
Major volcanic belt formed by the many volcanoes that rim the Pacific Ocean
What is the Ring of Fire?
100
A substance that cannot be broken down into other substances
What is an element?
100
Glassy rock formed by quickly cooling lava.
What is obsidian?
100
Name for the wide, gently sloping volcano.
What is a shield volcano?
100
Energy made by collecting heat from within the Earth.
What is geothermal energy?
200
Volcanoes often form along this type of boundary.
What is a plate boundary?
200
The resistance of a liquid to flowing.
What is viscosity?
200
The opening in the top of a volcano.
What is a vent?
200
A fountain of water and steam that erupts from the ground.
What is a geyser?
200
High, level areas of land formed by volcanic eruptions.
What are lava plateaus?
300
Major ones of these include Japan, New Zealand and the Carribean Islands
What is an island arc?
300
Lava rock formed from hot, fast moving lava.
What is pahoehoe?
300
Occurs when an explosive eruption hurls out a mixture of hot gases, ash, cinders, and bombs.
What is a pyroclastic flow?
300
Large rock masses formed when Magma cools inside the crust.
What is a batholith?
300
Mt. St Helens and Mount Fuji are this type of volcano.
What is a composite volcano?
400
This occurs in an area where material from deep within the mantle rises and then melts, forming magma. Hint: created the Hawaiian Islands.
What is a hot spot?
400
The amount of this substance in lava determines its viscosity.
What is silica?
400
Name for a dead volcano that will never erupt again.
What is extinct?
400
A huge hole left by the collapse of a volcanic mountain.
What is a caldera?
400
Name one of the two substances found in volcanic soils that help plants grow.
What is potassium or phosphorus?
500
Volcanic Mountain range in South America formed by subducting plates.
What re the Andes Mountains?
500
High viscosity lava often forms this type of rock. Hint: it's not basalt.
What is rhyolite?
500
Fine, glassy strands of lava named after the Hawaiian fire goddess.
What is Pele's hair?
500
A slab of volcanic rock formed when magma forces itself across rock layers.
What is a dike?
500
Name of the volcano that buried Pompeii.
What is Mount Vesuvius?