Slide 1

The Earths Layers Foldable Information This powerpoint will contain everything you will need included in your earths layers foldable we constructed in class.

Slide 2

Bellringer Write a 1-minute journal on how a peach is like the earths layers.

Slide 3

Click Below for Earths Layers Video

Slide 4

The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the center of the Earth!

Slide 5

CRUST : Composition: Made of Silicon (Si), Oxygen (O), and Aluminum (Al) Thickness: The thinnest layer 0-32 KM (0-19.8 miles) State of Matter: Solid cool rock Temperature: 200 to 400 C (392F to 752F)

Slide 6

Still CRUST: Interesting Facts: The outermost layer of the earth Two types of crust: oceanic, continental Oceanic (ocean floor) is thinner continental (mountains) is thicker It is part of the Lithosphere. Lithosphere: crust and upper mantle

Slide 7

MANTLEMANTLE Composition: Made of Magnesium (Mg), Si and O. Thickness: The largest layer 2,868 KM (1,800 miles) State of Matter: Plastic-like - Hot liquid magma Temperature: 870 to 2200 C (1,598F to 3992 F)

Slide 8

Still MANTLE: Interesting Facts: There are three parts: Upper mantle, Middle Mantle, and Lower Mantle (80% of Earth) No one has ever drilled into the mantle. It is part of the Asthenosphere. Convection currents cause UPLIFT, moving molten rock closer to the crust/surface. Convection currents Tectonic plates move around on the mantle.

Slide 9

THE Outer CORE Composition: Made of Iron and Nickle Thickness: 2,300 KM (1,429 miles) State of Matter: Hot molten liquid Temperature: 2200 to 5000 C (3992 to 9032 F)

Slide 10

THE Outer CORE Interesting Facts: The outer core spins around the inner core. This motion creates a magnetic center.

Slide 11

THE Inner CORE Composition: Made of Iron and Nickle Thickness: 1,300 KM (808 miles) State of Matter: Solid iron Temperature: 5000 to 6000 C (9032 to 10832 F)

Slide 12

THE Inner CORE Interesting Facts: Is the hottest layer of the Earth. Is a magnet due to the spin of the outer core.

Slide 13

Complete Discussion Questions Questions for My Earths Layers Foldable