Volcanoes

The most explosive volcanoes are ....

• hot spot volcanoes

• composite volcanoes

• cinder cone volcanoes

• shield volcanoes

Most volcanoes form ......

• at hot spots

• in the middle of continents

• at plate boundaries

• in the center of ocean plates

Tags

NGSS.MS-ESS3-2

When magma reaches earth surface it is called ...

• a vent

• a pyroclastic flow

• lava

• calderas

This type of volcano has broad, gently sloping sides and a nearly circular base.

• composite

• cinder cone

• shield

This type of volcano forms when layers of basaltic lava accumulate during a non explosive eruption

• composite

• cinder cone

• shield

Mount St. Helens and Mount Rainier are examples of this type of volcano.

• composite

• cinder cone

• shield

This type of volcano is potentially the most dangerous to humans and most destructive to the environment.

• composite

• cinder cone

• shield

Tags

NGSS.MS-ESS3-2

This type of volcano forms when small pieces of magma are ejected into the air then fall back to Earth and pile up around a vent.

• composite

• cinder cone

• shield

Magma that fuels this type of volcano contains large volumes of gases but not silica and water.

• composite

• cinder cone

• shield

Most of the volcanoes that form along divergent boundaries are located under water along _______.

• subduction zones

• hot spots

• deep sea trenches

• ocean ridges