Understanding the Earth's Layers

The video tutorial explains the formation of Earth, starting as a hot gaseous ball that cooled to form a solid crust. It describes the Earth's layers: the crust, mantle, outer core, and inner core, highlighting their composition and temperature. The video also covers volcanic activity, explaining how magma can escape through weak spots in the crust, forming volcanoes and hot springs.

What was the Earth like millions of years ago?

• A water-covered sphere

• A cold and icy planet

• A large ball filled with hot gases

• A solid rock

What is the outermost layer of the Earth called?

• Outer Core

• Inner Core

• Mantle

• Crust

What is the layer directly beneath the Earth's crust?

• Inner Core

• Mantle

• Magma

• Outer Core

What is the outer core primarily composed of?

• Solid rocks

• Liquid metals

• Water

• Ice

What is the term for the molten rock found in the Earth's outer core?

• Granite

• Sediment

• Magma

• Lava

What happens when magma escapes through weak spots in the Earth's crust?

• It forms mountains

• It creates earthquakes

• It erupts as lava

• It cools down immediately

What is a volcano that erupts frequently called?

• Dormant volcano

• Extinct volcano

• Active volcano

• Sleeping volcano

What is a volcano that has not erupted for a long time but may erupt again called?

• Extinct volcano

• Active volcano

• Sleeping volcano

• Dormant volcano

What is the term for hot water that emerges from the Earth's surface?

• River

• Waterfall

• Geyser

• Hot spring

What causes the water in hot springs to be heated?

• Underground fires

• Volcanic rocks

• Sunlight

• Friction