Structural Layers

Geologists also divide Earth into five functional layers based on their _______ properties.

Geologists also divide Earth into six functional layers based on their physical properties. True or False?

What does the physical properties include?

What are the layers of the Earth?

The “rock sphere” we call the _________ is a shell of cool, rigid rock.

The lithosphere includes what?

Pieces of lithosphere are carried along on the flowing asthenosphere like rafts on a slowly flowing ocean. True or False?

How thick is the lithosphere

The lithosphere is continuous like Earth’s other layers. True or False?

What are the pieces of lithosphere called?

The asthenosphere lies over the lithosphere. True or False?

The asthenosphere is hard as a rock. True or False?

The lower mantle sits between the asthenosphere and the outer core. True or False?

Is the lower mantle like the asthenosphere? Like a flowy liquid?

The outer core is a shell of hot, solid metal—mostly iron with some nickel. True or False?

This “geomagnetic” field is essential to life because it shields Earth from the _________— the stream of harmful high-energy particles emanating from the Sun.

What is the estimated temperature of the inner core?

With such a high temperature, how does the inner core remain solid?

_________ in the inner core packs the atoms so tightly that they cannot flow as they do in a liquid state.

What keeps the inner core solid?

The outer core creates Earth’s _____ field.

The inner core is a solid sphere of hot metal. It is mostly _____, like the outer core