Volcano

A major belt of volcanoes that rim the Pacific Ocean.

• Mid-ocean ridge
• Caldera ring
• Tectonic line
• Ring of Fire

A string of islands formed by volcanoes along a deep-ocean trench.

• island arc
• galapagoes
• pahoehoe
• aa

Liquid magma that reaches the surface... hardens into surface rock.

• magma
• basalt
• lava
• igneous

The opening through which molten rock and gas leave a volcano.

• pipe
• crater
• vent
• aa

What other geological event sometimes occurs in the same area as a volcano?

• tornado
• flood
• earthquake
• whirlwinds

The pocket beneath a volcano where magma collects?

• vent
• caldera
• magma chamber
• pipe

The expulsion of ash, cinders, bombs, and gasses during an explosive volcanic eruption.

• pyroclastic flow
• Fusion flow
• Fission Flow
• pahoehoe

A bowl-shaped area that forms around a volcano's central opening.

• vent
• pipe
• aa
• crater

Describes a volcano that is not currently active, but that may become active in the future.

• extince
• hibernation
• dormant
• sleeping

Describes a volcano that is no longer active and ;is unlikely to ever erupt!

• extinct
• dormant
• sill
• batholith