Topography and the Earth: Earth Layers Based on Physical Properties

The video explains the Earth's structure, comparing the crust to an apple's skin. It details the lithosphere, a cool, rigid layer made of major plates like the North American Plate. Beneath it lies the asthenosphere, a warmer, gooey layer with convection currents that drive plate movements.

What is the approximate thickness of the lithosphere?

Name at least one major plate that makes up the lithosphere.

How does the temperature of the asthenosphere compare to that of the lithosphere?

Describe the texture of the asthenosphere.

What are convection currents and where do they occur?