Volcanoes

What is the spread of lava as it pours out of a vent?

• magma chamber
• pipe
• lava flow
• crater

A dead volcano is called what?

• active
• dormant
• extinct

A sleeping volcano is called what?

• active
• dormant
• extinct

Once magma reaches the earth's surface it is called.....

• Silica
• Rock
• lava

Magma leaves a volcano through a....

• Sill

• Vent

• Chamber

• Crater

What is magma?

• Molten rocks inside a volcano

• Molten rock outside a volcano

• Gas ejected from volcanoes

• Small rock ejected from a volcano

What type of volcano is shown on the model above? 

• Shield Volcano
• Composite Volcano
• Cinder Cone Volcano

In a volcano, magma collects in a packet called ________.

• Caldera

• Magma chamber

• Magma pipe

• Conduit

Why does the volcanic eruption happen ?

• When the pressure on magma chamber inside earth increase and push magma to the surface.

• When energy is added through an earthquake

• when rock underground suddenly breaks along a fault.

Which of the following terms are used to describe a volcano that may erupt at any time? 

• Dormant volcano
• Active volcano
• Extinct volcano
• Shield volcano