9-2 Volcanoes

vent in the Earth’s crust through which melted or molten rock flows.

• Geyser

• Volcano

• Earthquake

• Fault

Molten Rock BELOW the Earth's surface

• magma

• lava

• caldera

• malt

molten rock ABOVE the Earth's surface

• magma

• lava

• malt

• caldera

Most Volcanoes occur...

• in the middle of tectonic plates

• along the edges plate boundaries

• at fault lines

Which boundary causes one plate to subduct under another plate, pushing it down, causing magma to rise?

• Convergent Plate Boundary

• Divergent Plate Boundary

Volcanoes that are NOT around a plate boundary occur at

• Fault Lines

• Hot Spots

• Calderas

An example of a hot spot is....

• Mt. St. Helens

• Mt. Everest

• Yellowstone National Park

represents an area of earthquake and volcanic activity that surrounds the Pacific Ocean.

• Circle of Fire

• Ring of Volcanoes

• Ring of Fire

• Circle of Volcanoes

How many different types of volcanoes are there?

• 1

• 2

• 3

• 4

Which volcano is common around a divergent plate boundary?

• composite volcano

• shield volcano

• cinder cone