Volcano Review

What is a determining factor in which type of eruption will occur?

• the chemistry of the magma

• the size of the mountain

• the climate around the volcano

• the number of people living near the volcano

Which list places the magma types in order of decreasing viscosity (most viscous listed first)?

• basaltic, andesitic, rhyolitic

• rhyolitic, andesitic, basaltic

• andesitic, basaltic, rhyolitic

• basaltic, rhyolitic, andesitic

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

• Silica

• Rock

• lava

Tags

NGSS.MS-ESS2-2

Stratovolcanoes can be described as...

• Very large with gentle slopes and eruptions of low viscosity magma

• Large with steep slopes and violent eruptions of very viscous magma

• Small and clustered in groups with steep slopes and firey eruptions that occur only once

Cinder cones can be described as...

• Very large with gentle slopes and eruptions of low viscosity magma

• Large with steep slopes and violent eruptions of very viscous magma

• Small and clustered in groups with steep slopes and firey eruptions that occur only once

Tags

NGSS.MS-ESS2-2

Which of the following is an opening through which molten rock and gas leave a volcano

• pipe

• magma chamber

• crater

• vent

What is pyroclastic material?

• Dust, ash and other material that comes out of a volcano.

• A type of magma that is in a volcano.

• A type of volcano.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS3-2

Which types of magma contains the least amount of SiO₂

• rhyolitic

• andesitic

• felsic

• basaltic

The composition of magma determines its _____.

• viscosity

• darkness

• color

• none of the above

Tags

NGSS.MS-PS1-1

Volcanoes that are made of basalt lava flows are called _____.

• shield volcanoes

• composite volcanoes

• stratovolcanoes

• cone volcanoes