A Look Inside the Earth Our Earth not

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A Look Inside the Earth

A Look Inside the Earth

Our Earth – not a solid ball of rock – composed of distinct layers

Our Earth – not a solid ball of rock – composed of distinct layers – layers based on composition and physical properties

Layers Based on Composition a. Crust b. Mantle c. Core – the lightest materials

Layers Based on Composition a. Crust b. Mantle c. Core – the lightest materials (less molecules) make up the outer layers – the densest materials (more molecules) make up the inner layers

• CRUST Layers Based on Composition – outermost layer of the Earth –

• CRUST Layers Based on Composition – outermost layer of the Earth – thinnest layer (5 -100 km thick) – two types of crust * continental (contains the Earth’s continents; thickest type of the crust; similar to granite) * oceanic (found under the ocean; thinnest type of crust; similar to basalt)

At its thickest, our crust is about the same as the distance from our

At its thickest, our crust is about the same as the distance from our school to Frankenmuth.

Crust video • https: //www. youtube. com/watch? v=f. Cye. EJ Ba 4 KE •

Crust video • https: //www. youtube. com/watch? v=f. Cye. EJ Ba 4 KE • Do not watch this right now. We are watching in class.

Layers Based on Composition • MANTLE – layer between the crust and core –

Layers Based on Composition • MANTLE – layer between the crust and core – thickness (2900 km) – contains most of the Earth’s mass (67%) – similar to olivine (consistency of silly putty); flows very slowly

The distance from the top of the mantle to the bottom is about the

The distance from the top of the mantle to the bottom is about the same as the distance from our school to Las Vegas, Nevada.

• CORE Layers Based on Composition – the innermost part of the Earth

• CORE Layers Based on Composition – the innermost part of the Earth – about the size of Mars (6856 km in diameter) – 33% of Earth’s mass – very dense; composed of iron and smaller amounts of nickel

Our Earth’s core is about the size of Mars.

Our Earth’s core is about the size of Mars.

Three Layers Videos • https: //www. youtube. com/watch? v=EJVO 1 v. Ee. Qw •

Three Layers Videos • https: //www. youtube. com/watch? v=EJVO 1 v. Ee. Qw • DO watch this one- 5 minutes long • As you watch write down 5 facts that you learn or think are interesting on the back of your note paper

Layers Based on Composition Can you think of any other foods that are good

Layers Based on Composition Can you think of any other foods that are good example of Earth’s interior layers based on composition? • Cherry • Peach • Avocado • Peanut M&M Why not an apple?

Layers Based on Physical Properties a. Lithosphere b. Asthenosphere c. Mesosphere d. Outer Core

Layers Based on Physical Properties a. Lithosphere b. Asthenosphere c. Mesosphere d. Outer Core e. Inner Core

Layers Based on Physical Properties • LITHOSPHERE – outermost rigid layer – made of

Layers Based on Physical Properties • LITHOSPHERE – outermost rigid layer – made of crust and rigid part of the mantle – divided into pieces called tectonic plates – 15 -300 km thick

At its thickest, our Earth’s lithosphere is about the same as the distance between

At its thickest, our Earth’s lithosphere is about the same as the distance between our school and Cedar Point

Layers Based on Physical Properties • ASTHENOSPHERE – soft layer of the mantle –

Layers Based on Physical Properties • ASTHENOSPHERE – soft layer of the mantle – lithosphere floats on top of it – flows like thick putty – about 250 km thick

Layers Based on Physical Properties • MESOSPHERE – extends from the bottom of the

Layers Based on Physical Properties • MESOSPHERE – extends from the bottom of the asthenosphere to the outer core – “middle sphere” – about 2250 km thick

The distance from the top of the mesosphere to the bottom is about the

The distance from the top of the mesosphere to the bottom is about the same as the distance from our school to Austin, Texas.

Layers Based on Physical Properties • OUTER CORE – liquid iron and nickel –

Layers Based on Physical Properties • OUTER CORE – liquid iron and nickel – surrounds the inner core – about 2200 km thick – where the Earth’s magnetic field is generated

Layers Based on Physical Properties • INNER CORE – solid – very dense; composed

Layers Based on Physical Properties • INNER CORE – solid – very dense; composed of iron and nickel – 10, 832 degrees Fahrenheit – 6, 378 km below Earth’s surface – 1, 228 km in diameter

Inner and Outer Core video • https: //www. youtube. com/watch? v=DW 4 x Wyi.

Inner and Outer Core video • https: //www. youtube. com/watch? v=DW 4 x Wyi. Qd. SM • DO watch this one- 5 minutes long. • As you watch write down 5 facts that you learn or think are interesting on the back of your note paper

Our Earth’s inner core is about the size of Charon, one of Pluto’s moons.

Our Earth’s inner core is about the size of Charon, one of Pluto’s moons. Charon Pluto Earth’s Moon

Layers of Earth video • https: //www. youtube. com/watch? v=NAHY 6965 o 08 •

Layers of Earth video • https: //www. youtube. com/watch? v=NAHY 6965 o 08 • DO watch this one- 6 minutes long • As you watch write down 5 facts that you learn or think are interesting on the back of your note paper

The Earth Inside and Out Inside the EarthThe Earth Inside and Out Inside the Earth
Look left right Look up look down LookLook left right Look up look down Look
Look Up Look Down Look Back Look ForwardLook Up Look Down Look Back Look Forward
Look up look down Look up look downLook up look down Look up look down
Inside my body Lets have a look insideInside my body Lets have a look inside
Inside my body Lets have a look insideInside my body Lets have a look inside
Time To Look Inside Bow Down Look UpTime To Look Inside Bow Down Look Up
TAKE A LOOK Look inside your childs mouthTAKE A LOOK Look inside your childs mouth
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NOT NOT NOT destination NOT Web site ExamplesNOT NOT NOT destination NOT Web site Examples
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So what will this look like inside ourSo what will this look like inside our
Inside our Intestine A closer look By AryaInside our Intestine A closer look By Arya
A Look Inside Our Future Together Building aA Look Inside Our Future Together Building a
Earth Geology Earth Earth Earth topography redmountain bluedepressionEarth Geology Earth Earth Earth topography redmountain bluedepression
look for look for look for get alonglook for look for look for get along
Look Up Look Around Look Beneath Your AcknowledgedLook Up Look Around Look Beneath Your Acknowledged
Inside the Earth The Composition of Earth TheInside the Earth The Composition of Earth The
Earth Structure Whats inside the Earth Is thereEarth Structure Whats inside the Earth Is there
Inside the Earth The Layers of the EarthInside the Earth The Layers of the Earth