The Restless EarthThe Restless Earth

Inside EarthInside Earth

YOUR TASK…

You will design a diagram of Earth’s interior to scale

You will conduct your research by reading pages 190-196 in your textbook

You will site your source of information

Restless Earth: Inside EarthINNER CORE OUTER CORE

MESOSPHERE ASTHENOSPHERE

Restless Earth: Inside EarthLITHOSPHERE

MODEL

INNER CORE:

1) Solid and VERY dense! (made from IRON and NICKEL)

OUTER CORE:

1) Liquid layer surrounding the INNER CORE

MESOSPHERE:

2) Reaches from the bottom of the ASTHENOSPHERE to the CORE

1) Made of the lower part of the MANTLE

ASTHENOSPHERE:

2) Pieces of the LITHOSPHERE move because the ASTHENOSPHERE moves underneath

1) A ‘plastic’ layer of the MANTLE

3) Soft and slow-moving

LITHOSPHERE:

2) Divided into pieces called TECTONIC PLATES

1) Made of CRUST and upper ridge of MANTLE

3) Solid but broken

THE CRUST (lithosphere)

1)The CRUST is the thinnest and outermost layer of Earth

2)There are 2 Types of CRUST: a. Denser oceanic crust b. Less dense continental crust

Compare and Contrast the elements found in each type of crust in a T-chart

CONTINENTAL CRUST

(less dense)

OCEANIC CRUST

(more dense)

What causes the cracks in Earth’s crust?

How have scientists used seismic waves to infer that Earth’s interior has many

different layers?