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## Inside the Earth

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### Inside the Earth TOC: Earths Layers 2/27/12 Starter: Calculate the Speed of an object traveling 120 miles in 3 hours. Next, calculate the time it would take the ... – PowerPoint PPT presentation

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Title: Inside the Earth

1
Inside the Earth
2
TOC Earths Layers 2/27/12
• Starter
• Calculate the Speed of an object traveling 120
miles in 3 hours.
• Next, calculate the time it would take the object
to get 240 miles if it traveled at that same
speed.

3
Practice
• Record all notes and demo observations in your
practice section.

4
The Earth is broken up into 3 main layers
• Crust - lithosphere asthenosphere
• Mantle upper, middle, lower
• Core inner outer

5
The Crust
• Outer layer
• 5-100 km thick
• 2 types of crust
• Oceanic (very dense, made of basalt)
• Continental (less dense, made of granite)

6
Oceanic and Continental Crust
7
The Mantle
• Middle layer
• Very thick layer

8
The Core
• 1/3 of the earths mass
• Very hot

9
Earths Layers
• How are the earths layers similar to an egg?
• Shellcrust
• Egg whitemantle
• Yolkcore

10
Earths Layers
• How are the earths layers similar to an orange?
• Peelcrust
• orange slicesmantle
• centercore

11
Earths Layers
• How are the earths layers similar to an apple?
• Peelcrust
• Inside of peelmantle
• Apple corecore

12
Although the Earth has 3 Main Layers - it can be
further divided into these layers
• Lithosphere
• Asthenosphere
• Upper Mantle
• Middle Mantle
• Lower Mantle
• Outer Core
• Inner Core

13
Physical Structure of the Earth (5 Layers)
• Lithosphere- crust and upper most solid mantle
• Asthenosphere- solid rock that flows slowly (like
hot asphalt)- Convection happens here!
• Mesosphere upper, middle lower mantle
• Outer Core- liquid layer
• Inner Core- solid, very dense

Mantle
14
III. Application
• Tape in both the Layers of the Earth Foldable
and the Layers of the Earth Vocab Foldable

15
Connection - Draw the below chart and