Volcanoes

__________________ is an active volcano located on the island of Luzon which erupted on June 15, 1991. It killed up to 800 people and destroyed thousands of homes.

• Mt. Taal

• Mt. Pinatubo

• Mt. Mayon

• Mt. Apo

TRUE or FALSE: The word "volcano" came from the Latin word "Vulcanus", which is the god of fire.

• TRUE

• FALSE

An _________________ volcano is one that has erupted in the last 10 000 years and there is a possibility that it may erupt soon.

• Inactive

• Extinct

• Dormant

• Active

A ___________________ volcano is one that has not erupted in the last 10 000 years but may still erupt in the future.

• Inactive

• Extinct

• Dormant

• Active

An _________________ volcano is one that erupted thousands of years ago and will no longer erupt in the future.

• Inactive

• Extinct

• Dormant

• Active

A ________________ is a mountain that has an opening to allow lava, hot vapor, and gas to escape from the pool of magma below

• Volcano

• Vulcan

• Cinder cones

• Composite

What volcanic materials are pieces less than 2 mm in diameter, floats and can be carried away by the wind?

• Ash

• Tephra

• Lava

• Magma

• Lahar

What do you call the mudflow which is a combination of volcanic material, water and other debris?

• Ash

• Tephra

• Lava

• Magma

• Lahar

What volcanic material is the extremely hot liquid and semi-liquid rock located under Earth’s surface?

• Ash

• Tephra

• Lava

• Magma

• Lahar

Fragments of rock that are ejected into the air by an erupting volcano is called _______________.

• Ash

• Tephra

• Lava

• Magma

• Lahar