Volcanoes

What factor(s) determine(s) whether an eruption will be effusive?

• The amount of gases in the magma

• The amount of silica in the magma

• The amount of gas and silica in the magma

• None of these affect the explosiveness of the volcano

Vocanoes are found...

• on land
• under water
• on islands
• all of the above

Tags

NGSS.MS-ESS3-2

What is a volcano?

• A mountain that has lava all over it 
• A giant hill filled with magma
• A long high sea wave 
• A hole in the Earth where magma erupts

The difference between magma and lava is _____

• where it is found (above or below the surface)
• how hot the molten rock is (lava is hotter than magma)
•  the type of boundary where it forms
• the viscosity of the molten rock (lava has a lower viscosity)

Where are most volcanoes found?

• Southern Hemisphere
• Ring of Fire
• Mid-Atlantic Ridge
• Hot Spots

What is / are sign(s) that a volcano may erupt soon?

• Earthquake activity in the area
• Changes in the shape of the volcano
• Different amounts of gas being produced
• All of these are signs

Tags

NGSS.MS-ESS3-2

Lakes that form near volcanoes considered to be....

• Craters
• Conduits
• Vents
• Calderas

Tags

NGSS.HS-ESS2-1

Which one of these does NOT affect the temperature at which magma forms?

• Pressure
• Composition of material
• Water
• Viscosity

Tags

NGSS.HS-ESS2-3

Volcanoes that have recently erupted are known as:

• Extinct Volcano
• Dormant Volcano
• Active Volcano
• What's a volcano?

A volcano that has erupted in the last 2000 years but not recently is known as....

• Dormant
• Active
• Extinct
• Angry