Daily Quizizz: Volcano

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

• Silica

• Lava

• Rock

• Molten

Explosive eruptions occur if a volcano's magma is

• high in viscosity

• Mafic

• Low in viscosity

• Extremely hot

When a volcano erupts quietly, what kind of mountain forms?

• A Shield Volcano

• A Cinder Cone Volcano

• A Composite Cone Volcano

What do we call molten hot liquid rock while it is still below the Earth's surface?

• Magma

• Igneous

• Cinder

• Lava

Approximately 70% of the world's composite volcanoes are located around the Pacific Ocean in a region called the ____________. 

• Ring of Fire
• Volcano Ring
• Nucleus of Volcanoes
• Center of Fire

Definition of a volcano

• an opening in the Earth's crust

• crater

• vent

• mantle

The volcanoes on the Hawaiian Islands form due to which of the following?

• Divergent Boundary
• Hot Spot
• Subduction Boundary
• Transform Boundary

What type of volcano has steep slopes made of alternating layers of ash and silica rich lava?

• Caldera
• Cinder Cone
• Composite Volcano
• Shield Volcano

Most volcanoes occur at which 2 types of plate boundaries? 

• convergent w/ subduction and divergent
• divergent and transform
• divergent and hot spots
• convergent w/ subduction and hot spots

A shield volcano

• has steep sides made of cinders and ashes
• has gently sloping sides and can form over hot spots
• is a destructive volcano
• used to make shields for knights