Volcanoes and Earthquakes

Once magma reaches the surface, it is called _.

• silica

• lava

• rock

Volcanic belts form along the boundaries of Earth's​ (a)  

• plates
• islands
• rivers

Tags

NGSS.MS-ESS3-2

An explosive eruption occurs if magma is __.

• low in viscosity

• high in silica

• very thin

When a volcano is no longer erupting, and it is unlikely for it to erupt in the future, is called ​ (a)  

• extinct
• active
• dormant

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

• shield volcano
• cinder-cone volcano
• composite volcano

 When a volcano erupts explosively, what kind of mountain is formed? ​​ (a)  

• cinder-cone volcano
• shield volcano
• composite volcano

Magma leaves a volcano through a ​ (a)  

• vent
• pipe
• crater
• magma chamber

The part of the volcano that stores the molten material BEFORE eruption is the (a)  

• magma chamber
• pipe
• vent
• crater

Tags

NGSS.MS-ESS3-2

The part of the volcano labelled 2 is the ​ ​ (a)   (Click the picture to make it bigger)

• pipe
• side vent
• main vent
• crater
• lava flow
• ash cloud
• bomb
• magma chamber

Tags

NGSS.MS-ESS2-2

The part of the volcano labelled 4 is the ​ ​ ​ (a)   (Click the picture to make it bigger)

• side vent
• crater
• lava flow
• ash cloud
• bomb
• magma chamber
• pipe
• main vent