The video explains the Earth's structure, detailing the crust, mantle, outer core, and inner core. Each layer has unique chemical compositions and states. The inner core is solid, while the outer core is liquid.

What are the main layers of the Earth mentioned in the text?

How do the layers of the Earth differ from one another?

What are the chemical differences among the Earth's layers?

What state of matter is the inner core described as?

In what state is the outer core compared to?