Magma and Lava

The video explains the nature of volcanoes, focusing on lava and magma. Lava is molten rock that reaches the Earth's surface, while magma is the molten rock beneath the surface. Volcanoes are locations where these materials, along with gases, emerge. The video also describes the destructive power of lava flows and the structure of volcanoes, including vents and volcanic mountains.

What is the term used for liquid rock that reaches the Earth's surface?

• Basalt

• Sediment

• Lava

• Magma

Where is molten rock referred to as magma?

• In the atmosphere

• In the ocean

• On the Earth's surface

• Inside the Earth

How does magma typically reach the Earth's surface?

• Through cracks in rocks

• By cooling and solidifying

• By evaporating

• Through volcanic eruptions

What is a volcano?

• A place where molten rock and gases reach the surface

• A large body of water

• A mountain formed by sediment

• A type of earthquake

What is the opening through which lava flows called?

• Caldera

• Fissure

• Vent

• Crater