Volcanoes: Constructive or Destructive?Maples 9/2/11

What’s going on in this picture? *Write 2 questions to ask and answer with your group.

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What is a volcano?

Volcano- Areas of earth’s surface through which magma and volcanic gases pass

Volcano comes from the Roman word Vulcan, which means “fire”

How do islands form? Discuss with your group.

What Does Constructive Mean?

Constructive Process is the building up of the Earth’s surface.

Could a volcano be constructive?

Could A Volcano Be Constructive?

• Yes! Builds up land when lava dries

• Forms islands

What Does Destructive Mean?Destructive Process is the tearing down of the Earth’s surface.

Could a volcano be destructive?

Is a Volcano Destructive?

• Yes! A volcano can tear down/destroy the Earth’s surface!

West US Volcanoes

Ring of FireThe Ring of Fire is an area on the Earth where large numbers of volcanoes and earthquakes occur. Where in the United States do you see the most volcanoes?

Who Studies Volcanoes?A volcanologist is someone who studies volcanoes. How can their studying volcanoes help us?