Volcanoes

What is molten rock that has reached the Earth's surface?

• Aa
• Lava
• Magma
• Pahoehoe

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

When an explosive eruption  forms a mixture of hot rock, ash, and gas, this material is called a...?

• Land slide
• Lava
• Eruption trail
• Pyroclastic flow

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

This is the name for the chain of volcanos around the edge of the Pacific Plate.

• Circle of Fire
• Ring of Lava
• Ring of Fire
• Circle of Magma

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Dormant volcanoes might erupt in the future.

• True
• False

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

Where do volcanoes come from?

• Places where plates move apart
• Places where plates are moving together
• Hot Spots
• All of these options

Tags

NGSS.MS-ESS2-2

Which type of volcano has recently erupted or will soon erupt?

• Active
• Dormant
• Extinct

Tags

NGSS.MS-ESS3-2

A live volcano

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

Tags

NGSS.MS-ESS3-2

A sleeping volcano

• Composite volcano
• Active volcano
• Extinct volcano
• Dormant volcano