6- Forces that Shape the Earth

A major volcanic belt known as the ___________________ circles the Pacific Ocean.

• Ring of Volcanos

• Ring of Fire

• Ring of Cinder

• Caldera

The _______ is the point beneath Earth’s surface where rock breaks under stress and triggers an earthquake.

• Syncline

• footwall

• epicenter

• focus

S waves are also known as _______

• primary waves

• secondary waves

• surface waves

• focus waves

The huge hole left by the collapse of a volcanic mountain is called a _______

• lava plateau

• caldera

• cinder cone volcano

• composite volcano

What triggers the small earthquakes that occur around a volcano before an eruption?

• pyroclastic flow

• cooling magma inside the crust

• upward movement of magma

• plate movements

Name the type of volcano illustrated here that is formed by lava that seeped out of several cracks then travels a distance before cooling and solidifying.

• Lava Plateau

• Caldera

• Shield Volcano

• Cinder Cone Volcano

Name the type of volcano illustrated here that is formed by a huge hole left by the collapse of a volcanic mountain.

• Shield Volcano

• Caldera

• Lava Plateau

• Cinder Cone Volcano

Vibrations that move through the ground carrying the energy released during an earthquake are called ______________.

• seismic waves

• surface waves

• P waves

• S waves

Name the type of volcano illustrated here that is formed by lava that has high viscosity and produces ash, cinders, and bombs which all build up around the vent in a steep hill or small mountain.

• Caldera

• Shield Volcano

• Lava Plateau

• Cinder Cone Volcano

A _______ is a long tube in the ground that connects the magma chamber to Earth’s surface.

• vent

• pipe

• crater

• side vent