Journey to the Center of the Earth: Exploring Earth's Layers

In this lesson, Anella and Settle explore the Earth's structure using a sandwich analogy. They describe the Earth's four main layers: the crust, mantle, outer core, and inner core. Each layer's characteristics, such as composition and temperature, are explained. The lesson concludes with a preview of the next topic, plate tectonics.

What analogy is used to describe the Earth's structure?

• A layered cake

• A sandwich

• A pizza

• A hamburger

Which layer of the Earth is the thinnest?

• Inner core

• Outer core

• Crust

• Mantle

What is the primary composition of the Earth's mantle?

• Solid rock

• Liquid water

• Solid and liquid materials

• Gaseous elements

What metals make up the Earth's outer core?

• Gold and platinum

• Iron and nickel

• Nickel and silver

• Iron and copper

Why does the inner core remain solid despite high temperatures?

• It is made of different materials

• The pressure is extremely high

• It is protected by the mantle

• It is cooler than the outer core