1
Hot, fast-moving clouds of gas, ash, and rock fragments that are expelled during a volcanic eruption.
2
An opening in the Earth's crust through which volcanic materials are emitted.
3
Hot, molten rock beneath the Earth's surface that feeds volcanic eruptions.
4
A sudden and violent outburst of molten rock, ash, and gases from a volcano.
5
A large, basin-shaped depression that forms when a volcano collapses into the emptied magma chamber beneath it.
6
Hot, molten rock that flows from a volcano during an eruption.
7
A bowl-shaped depression at the top of a volcano, formed by the explosion or collapse of the volcano's summit.
8
Fine, powdery material that is ejected from a volcano during an eruption.
