Volcanoes - Distance Learning

What percent of the Earth's volcanoes reside in the Ring of Fire?

• 75%
• 100%
• 90%
• 0%

A subduction zone is...

• plates pull apart.
• the continental plate slides under the oceanic plate.
• where the oceanic plate slides under the continental plate.
• plates slap each other a high five.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What is molten rock that has formed deep within the Earth?

• Hot Spot
• Magma
• Lava
• Volcano

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

• Aa
• Lava
• Magma
• Pahoehoe

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

A weak spot in the crust where molten material, or magma comes to the surface

• lava
• volcano
• earthquake
• tsunami

Why does magma tend to rise to the surface?

• It has large amounts of silica.
• It contains very little silica.
• It is denser than the surrounding material.
• It is less dense than the surrounding material.