Volcanoes!

Front

Magma that reaches the surface is called:

Back

Lava

Front

The more silica that magma contains...

Back

the thicker the magma

Front

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

Back

Ring of Fire

Front

Shield volcanoes have: gently sloping sides, a steep cone shape, moderately sized sides, long cracks along plate boundaries

Back

gently sloping sides

Front

What is formed when a volcano erupts, empties the magma chamber, and collapses the top leaving a huge hole? Options: Dike, Caldera, Silica, Geyser

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:

Back

magma chamber

Front

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

Back

viscosity

Front

The Hawaiian islands are made from this type of volcano.

Back

Shield