Structure of a Volcano
How They are Formed
Level of Activity
Kind of Eruption
Major Volcanoes
100

This is formed when magma squeezes its way through the crust and forms a reservoir

What is a magma chamber?

100

This volcano is formed from eruptions composed of tephra

What is a cinder cone volcano?

100

This volcano is one that has erupted recently

What is an active volcano?

100

In this eruption the volcano produces a large amount of fluid lava.

What is a Hawaiian eruption?

100

More than a fourth of volcanoes are found here

What is The Ring of Fire?

200

This is formed when trapped gases blast an opening through the earth's surface

What is a vent?

200

This volcano has lava that erupts from fissures at the base

What is a shield volcano?

200

This volcano has not erupted in recorded history

What is an extinct volcano?
200

This eruption comes from a volcano that has lain dormant for a long time.

What is a Plinian eruption?

200

This volcano is located in Washington and is an example of when one plate is forced downward into the  hot mantle

Mount St. Helens

300

After reaching the earth's surface, magma is called this

What is lava?

300

This type of volcano produces cinders and lava

What is a composite volcano?

300

Mount St. Helens is an example of this volcano

What is an active volcano?

300

This kind of eruption produces lava fountains and lava curtains.

What is a Hawaiian eruption?

300

These islands were formed in the middle of crustal plates when lava plumes melt through the crust allowing the magma to reach the surface

What is Hawaii?

400

The large volume of gas from steam increases what force

What is pressure?

400

Large lakes are formed in this, formed after a magma chamber caves in

What is a caldera?

400

Mount Kilimanjaro is an example of this volcano

What is an extinct volcano?

400

This type of eruption is noisy but mild

What is a Strombolian eruption?

400

This volcano is a cinder cone volcano and grew to 1,300 feet in only nine years

What is Paricutin volcano?

500

Vent that allows molten rock and hot gases to escape

What is a volcano?

500

This type of volcano is usually formed by a single eruption

What is a cinder cone volcano?

500

This type of volcano has erupted recently and is now inactive

What is a dormant volcano?

500

This eruption expels hot clouds of gas and dust.

What is Plinian eruption

500

This is an extinct volcano located in Japan.

What is Mount Kilimanjaro?

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