Volcanoes Unleashed: Facts and Features of Earth's Fiery Mountains

The video introduces volcanoes, explaining that they are vents connecting magma from within the Earth's crust to the surface. It describes the eruption process, where pressure from expanding gases causes eruptions. Various types of volcanoes are discussed, including those on the ocean floor and under icecaps. The origin of the word 'volcano' and trivia about the tallest volcano in the solar system are also covered.

What is the substance called that flows out of a volcano?

• Magma

• Lava

• Ash

• Steam

What is the main difference between magma and lava?

• Magma is found on the surface, lava is underground

• Magma is underground, lava is on the surface

• Magma is cold, lava is hot

• Magma is solid, lava is liquid

What is the primary role of a volcano's vent or 'chimney'?

• To store lava

• To cool down magma

• To connect magma to the surface

• To release ash

Which of the following is NOT a common volcanic gas?

• Water vapor

• Carbon dioxide

• Oxygen

• Sulfur dioxide

What causes a volcano to erupt?

• Earthquakes

• Pressure from expanding gases and steam

• Tectonic plate movement

• Wind erosion

Which of the following is a type of volcano?

• Deep valley

• Wide plateau

• High cliff

• Flat plain

Where can volcanoes be found besides on land?

• In forests

• In deserts

• On the ocean floor

• In the sky

From which Roman god does the word 'volcano' originate?

• Neptune

• Vulcan

• Mars

• Jupiter

Where is the tallest volcano in the Solar System located?

• Earth

• Mars

• Jupiter

• Venus