Volcanoes!

Front

Magma that reaches the surface is called:

Back

Lava

Front

The more silica that magma contains...

Back

the higher the viscosity

Front

The belt of volcanoes around the rim of the Pacific Ocean is called:

Back

Ring of Fire

Front

Shield volcanoes have:

Back

gently sloping sides

Front

When a volcano erupts, empties the magma chamber, and collapses the top leaving a huge hole.

Back

Caldera

Front

Explosive eruption that hurls ash, gases, cinders, and bombs from the main vent.

Back

Pyroclastic flow

Front

A chain of volcanic islands formed where two oceanic plates collide is called:

Back

island arc

Front

Inside a volcano, magma collects in a pocket called a: caldera, pipe, magma chamber, vent

Back

magma chamber

Front

These volcanoes form in long cracks where plates are pulled apart.

Back

Fissure volcano

Front

Magma's resistance to flow, or how thick it is, is called:

Back

viscosity