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The Layers of the Earth!. Earth Layers. The Earth is divided into four main layers. We will also deal with the Asthenospere; part of the upper mantle that allows the plates to move. Inner Core Outer Core Mantle Asthenosphere (Part of the upper mantle) Crust. The Crust.

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Presentation Transcript
earth layers
Earth Layers
  • The Earth is divided into four main layers. We will also deal with the Asthenospere; part of the upper mantle that allows the plates to move.
    • Inner Core
    • Outer Core
    • Mantle
    • Asthenosphere (Part of the upper mantle)
    • Crust
the crust
The Crust

* The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers.

*The crust makes up 1% of the Earth.

* The crust of the Earth is broken into many pieces called plates.

the asthenosphere
The Asthenosphere
  • The asthenosphere is the plastic layer of the upper Mantle that lies just under the crust.
  • It acts as a “liquid” cushion under the crust and allows the plates to move under the force of convection currents in the Earth’s interior.
the mantle
The Mantle
  • The mantle is the layer below the crust.
  • The mantle is the largest layer of the Earth.
  • The mantle is divided into two regions: the upper and lower sections.
  • The upper mantle is the location of the asthenosphere.
outer core
Outer Core

* The core of the Earth is like a ball of very hot metals.

* The outer core is liquid.

* The outer core is made up of iron and is very dense.

inner core
Inner Core

* The inner core of the Earth has temperatures and pressures so great that the metals are squeezed together and are not able to move.

* The inner core is a solid.

the earth bowl
The Earth Bowl
  • First, everyone will divide up into groups!
  • The groups need to pick two people to be the materials specialists. Those people will need to get:

A plastic baggie which contains graham crackers and sugar.

A container of Cool Whip or other “whipped cream-like” topping.

A container of Red Jell-O

A container of Dark red Jell-O

A container of Yellow Jell-O

A spoon

A bowl

DO NOT TOUCH ANY OF THE MATERIALS AFTER YOU HAVE RECEIVED THEM. WAIT UNTIL I EXPLAIN WHAT TO DO.

the steps to making the layers
The Steps to Making the Layers!

1) First you will need the plastic baggie containing graham crackers and sugar. Break the graham crackers up with the sugar in the bag.

DO NOT POUND TOO HARD! YOU DON’T WANT THE BAG TO BREAK!

2) After the graham crackers are broken up into crumbs, I will bring you butter to mix in the baggie.

3) Now, take the graham crackers out and press the mixture on the sides of the bowl to form the crust.

slide10
4). Now take the Cool Whip and gently spread it onto the graham crackers. Thinly!

5) Now take the Dark Red Jell-O and spoon it into the bowl that you have put the crust & asthenosphere in. Form it so there is a pocket in the middle left open

slide11

6. Take the Yellow Jell-O and put it in the bowl where you left the pocket, but make sure you leave smaller hole in the middle for your raspberry Jell-O.

7) Finally, put your raspberry Jell-O in the center and leave a smaller hole for the Candy center

slide12

You have now made the Layers of the Earth*The Crust (graham crackers)Asthenosphere (Cool Whip)*The (upper) Mantle (Dark Red)* The (lower) Mantle (Yellow)* The Outer Core (raspberry)* Inner Core (Candy center)

review
Review

1) What are the five layers of the Earth?_____ _____ ______ ______ _______

2) The Earth’s crust is very ______?

3) The mantle is the largest layer of the Earth? True or False

4) Is the Outer Core a liquid or a solid?

answers
Answers!

1) Crust, Mantle, Outer Core, Inner Core

2) Thin

3) True

4) Liquid