What I Did For Lava
When Lava Goes Boom
Volcanic Types, Not Typos
Volcanic Who, What, and Where
Everything Else Volcanic
100
Calm lava flows
What would you expect to see during a nonexplosive eruption?
100
Lapilli
Which type of pyroclastic material gets its name from a word that means “little stones”?
100
Composite volcano
What type of volcano is a combination of explosive and nonexplosive eruptions?
100
It might erupt again in the future
What is a dormant volcano?
100
A magma chamber and a vent
What are the two main parts of a volcano?
200
Pahoehoe lava
What type of lava flows most like dripping wax?
200
Volcanic ash
Which type of pyroclastic material can reach the upper atmosphere and circle the Earth for years?
200
Shield volcano
Which type of volcano has gently sloping sides?
200
It might not erupt ever again
What is an extinct volcano?
200
It probably has a high silica content
What is very thick, explosive lava?
300
Aa lava
What lava pours out quickly and forms a brittle crust?
300
When magma explodes into the air and hardens
How is pyroclastic material formed?
300
Cinder cone volcano
What type of volcano has steep sides?
300
Convergent boundaries
Where do most active volcanoes form?
300
A lava plateau
What is a landform that results from many eruptions of lava spread over a large area?
400
Blocky lava
What type of lava flows out as cool, stiff lava?
400
Lava blocks
What are large rocks blown out of volcanoes called?
400
Caldera
What is a large depression that forms when a volcano’s magma chamber empties?
400
The theory of plate tectonics
What is theory helps to explain the causes of volcanoes?
400
Tectonic plates are moving apart
What is happening at divergent plate boundaries?
500
It is very thick like pudding
What is lava with a high viscosity like?
500
Magma with high silica content and high viscosity
What type of magma tends to cause explosive eruptions?
500
Solar reflection will increase and temperatures will decrease
If volcanic dust and ash remain in the atmosphere for months or years, what do you predict will happen?
500
High temperature and low pressure
What is most often necessary for the formation of magma?
500
When the temperature of a rock remains constant but the pressure on the rock decreases
What is how rock becomes magma
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