Volcanoes, Our Fiery Neighbor

The video explores the fascinating world of volcanoes, discussing their unpredictability and classifications into extinct, dormant, and active types. It highlights the dramatic eruption of Mount Saint Helens and explains the characteristics of different volcano types, including composite, cinder cone, and shield volcanoes. The video also touches on volcanic rocks like pumice, granite, and obsidian, concluding with a reminder of the ever-present adventure that volcanoes represent.

Which type of volcano is considered inactive for at least 10,000 years?

• Dormant

• Extinct

• Active

• Composite

What significant event occurred at Mount Saint Helens in 1980?

• It formed a new crater

• It became a dormant volcano

• It was declared extinct

• It erupted, causing a massive landslide

What is a characteristic feature of a composite volcano?

• A single vent

• A flat top

• A cone shape built layer by layer

• A gentle slope

Which type of volcano is Cerro Negro in Nicaragua?

• Cinder cone

• Shield

• Composite

• Extinct

What is the tallest volcano in the world when measured from its base?

• Mount Everest

• Mount Saint Helens

• Mount Fuji

• Mauna Kea

Which volcanic rock forms from lava that cools slowly underground?

• Pumice

• Granite

• Obsidian

• Basalt

What type of volcanic rock is often part of pyroclastic flows?

• Pumice

• Obsidian

• Basalt

• Granite