LAVA
VOLCANIC
ERUPTIONS
AFTER AN ERUPTION
VOLCANO
Volcano Tidbits
100
What is lava?
molten rock
100
What is most common type eruption?
Nonexplosive
100
After an explosion, volcanic ash affects the climate in what ways?
Smothers crops, kills livestock, causes lung disease, blocks the sun, and can change the temperature.
100
What is built by layers of lava released from repeated nonexplosive eruptions?
A shield volcano
100
What is the area called that contains 75% of the world's active volcanoes on land? It is located in the Pacific Ocean.
The Ring of Fire
200
what are the 4 types of lava ?
Blocky, Pillow, Pahoehoe & Aa
200
A combination of explosive and non-explosive eruptions create what kind of volcano?
Composite
200
Why does a volcanoes crater get larger after an explosion?
Because the explosion blows the top off, creating a larger opening.
200
What are the three basic types of volcano?
shield, cinder cone, composite
200
What is likely places for volcanoes to form?
tectonic plate boundaries
300
True or False.....Water makes lava more explosive.
True (pg 252)
300
What kind of volcano will never erupt again?
Extinct
300
What type of materials form from an eruption?
Pyroclastic Material
300
What is in a volcano?
ash, gases, and magma
300
True or False....The type of boundary where a volcano occurs determines what type of volcano is created.
True
400
High viscosity magma flows slowly or quickly?
Slowly
400
What is the 4 types of pyroclastic material?
volcanic bombs, lapilli, volcanic ash, volcanic block
400
What is worst effect globally from a volcano?
Global Climate Change
400
What is the most common type of volcano?
composite volcanoes
400
What type of volcano produces runny lava?
Shield
500
Large blocks of magma that dry in the air and shaped like a football is called...
Volcanic Bombs
500
What are 2 types of eruptions ?
Explosive & nonexplosive
500
Name 2 things that are released from a volcano during an eruption that can affect climate.
Ash and gas
500
What volcano is formed by pyroclastic material? It has steep slopes.
cinder cone volcanoes
500
What is an area of deep cracks that forms between 2 tectonic plates? Usually found in the middle of the ocean.
a hot spot
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