Molten Material and Plate Boundaries

Volcanoes are usually found

• in the middle of the ocean

• along plate boundaries

• at the edge of continents

• in the southern hemisphere

Before lava reaches the surface, the molten material is called ____.

• rock

• magma

• volcanic ash

• liquid fire

Tags

NGSS.MS-ESS2-1

Molten material that leaves a volcano's vent is called ___________.

• gas

• magma

• lava

• liquid fire

Tags

NGSS.MS-ESS2-1

A feature that forms in Earth´s crust when molten material reaches the surface is called a ____________________.

• Mountain

• Volcano

• Rift Valley

• Deep Ocean Trench

Tags

NGSS.MS-ESS2-2

This plate is involved in all of the Ring of Fire Volcanoes.

• The Nazca Plate
• The North American Plate
• The Pacific Plate
• The Indian Plate

Tags

NGSS.MS-ESS3-2

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)

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.MS-ESS3-2

An area where material from deep within Earth´s mantle rises to the crust and melts to form magma is called

• a hot spot.

• a divergent boundary.

• a rift valley.

• a deep ocean trench.

TRUE or FALSE: Volcanoes form along the mid-ocean ridges, where two plates move together.

If false change the underlined word to make it true.

• TRUE

• FALSE: apart

• FASLE: past each other

Not all volcanoes form along plate boundaries.

If false change the underlined word to make it true.

• TRUE

• FALSE: all

Tags

NGSS.MS-ESS3-2