Volcanism

The video explains volcanism, the process of magma escaping the Earth's core, cooling, and forming rocks. Magma becomes lava upon reaching the Earth's surface, leading to extrusive volcanism and igneous rock formation. Intrusive volcanism occurs when magma hardens beneath the surface. The video encourages viewers to consider how volcanism affects land, air, and water.

What is the term used for magma once it reaches the Earth's surface?

• Igneous rock

• Lava

• Sedimentary rock

• Basalt

What type of rock is formed when lava cools on the Earth's surface?

• Sedimentary rock

• Limestone

• Metamorphic rock

• Igneous rock

How does extrusive volcanism contribute to the Earth's landscape?

• By forming sedimentary layers

• By creating new land and terrain

• By causing earthquakes

• By eroding mountains

What is the process called when magma hardens beneath the Earth's surface?

• Sedimentation

• Erosion

• Intrusive volcanism

• Extrusive volcanism

What happens to melted rock trapped beneath the Earth's surface?

• It cools slowly and forms igneous rock

• It cools quickly and forms lava

• It forms sedimentary rock

• It evaporates