Unit 6 - Layers of the Earth

Inner Core

A sphere of solid iron and nickel at the center of Earth

The solid layer with plasticity in the upper mantle

Asthenosphere

The elements that make up a substance

Chemical Composition

What layer is represented by letter A?

Crust

The divisions of the composition of the Earth

Earth's Layers

What layer is represented by letter D?

Inner Core

The cool rigid outer-most layer of the Earth

Lithosphere

What layer is represented by letter B?

Mantle

The middle region of the mantle

Mesosphere

What layer is represented by letter C?

Outer Core

Characteristics that can be observed or measured without changing the substance

Physical Properties

The quality of being easily shaped or molded

Plasticity

A variable that affects the state of matter of the Earth's layers

Pressure

Mantle

The solid layer of Earth between the crust and the core

Crust

The thin and solid outermost layer of the Earth above the mantle

The Mantle is composed of --

dense silicates

The Crust is composed of --

either land or ocean

The Outer Core is composed of --

iron and nickel - in a liquid state

The Inner Core is composed of --

iron and nickel - in a solid state

Outer Core

the liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core