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Page 1: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 2: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Journey to the Center of Earth

Page 3: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Layers of the Earth

• Outer Crust• Inner Crust• Mantle• Outer Core• Inner Core

Crust

Page 4: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Inner Core750 mileradius

Outer Core1,430 miles

Mantle1,800 miles

Crust(10-25 miles)

Inside Our Earth

Page 5: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The inner core is made of solid nickel and iron.

The outer core ismade of hot liquid nickel and iron.

The crust is made of soil, water and rock.

The mantle is hot partmelted and part solidiron and magnesium.

Composition of the Earth’s Layers

Page 6: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Outer Crust

• This is the layer that we live on• The thickness ranges from five miles under the

oceans to 25 miles under the continents• Consists of cooled rock• It is the thinnest layer of the earth

Page 7: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The Mantle

• This layer is semi- liquid

• It consists of magnesium, iron, and silicon

• It is 3000 km wide• It is more solid closer

to the surface

Page 8: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The Outer Core

• This is consists of liquid due to the high temperatures

• It is 2100 km wide• This layer consists of nickel and iron

Page 9: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The Inner Core

• This layer is solid.• The reason it is solid is due to the high

pressure exerted on it from the outside layers.• It consists of the metals nickel and iron.• Its temperature is 6,000 degree Celsius.• Its width is 2,100 km.

Page 10: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Let’s Play

Page 11: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Rocks can move

Page 12: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 13: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Beneath the crust

Page 14: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Solid iron

Page 15: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Thinnest layer

Page 16: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 17: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Under the mantle

Page 18: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Plates ride on top

Page 19: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Melted iron

Page 20: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Center of Earth

Page 21: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Outermost layer

Page 22: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 23: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Solid rock

Page 24: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 25: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Earth’s ________ is divided into sections.

crust

Page 26: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

How many sections is Earth’s crust divided into?

Page 27: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

These sections are known as …

Page 28: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The place where plates meet is called a …

Page 29: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Most volcanoes and earthquakes are located at the …

Page 30: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Let’s Play

Page 31: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Mountains

Page 32: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Plates move apart

Page 33: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Volcanoes

Page 34: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Changes the shape of the ocean floor

Page 35: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Trenches

Page 36: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Plates collide

Page 37: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Two plates slide past one another

Page 38: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

One plate slides under another

Page 39: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

When two plates converge ________ may work its way through the crust.

magma

Page 40: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Magma may contain highly explosive ________.gases

Page 41: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

A ____________ is formed when magma breaks through to the surface.

volcano

Page 42: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

New _______ is formed when the lava cools and hardens.

land

Page 43: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

An _______________ occurs when plates move and the crust slips or breaks.

earthquake

Page 44: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

The gradual uplifting of the crust during an earthquake causes ____________ to form.mountains

Page 45: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

Page 46: Journey to the Center of Earth Layers of the Earth Outer Crust Inner Crust Mantle Outer Core Inner Core Crust

THANK YOU!

Boffi Inner-Outer 2011

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