Volcanic Eruptions Flashcards
1
Q
Magma Chamber
A
The pocket of magma beneath the surface.
2
Q
Pipe
A
A long tube that extends from Earth’s crust up through the top of the volcano.
3
Q
Vent
A
Molten rock and gas leave the volcano through an opening.
4
Q
Lava Flow
A
The spread of lava as it pours out of a vent.
5
Q
Crater
A
A bowl-shaped area that may form at the top of a volcano around the central vent.
6
Q
Silica
A
A material found in magma that forms from the elements oxygen and silicon.
7
Q
Pyroclastic Flow
A
The mixture of hot gasses, ash, cinders, and bombs that flow down the sides of a volcano when it erupts.
8
Q
Dormant
A
Or sleeping volcano, is a volcano that scientists expect to awaken in the future and become active.
9
Q
Extinct
A
Or dead volcano, is a volcano that may become extinct after it erupts.
