inside the earth ppt
DESCRIPTION
This was taken from different sources on the internet.TRANSCRIPT
![Page 1: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/1.jpg)
Inside the Earth
The Layers Within
![Page 2: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/2.jpg)
Composition (What it is made of)
• Crust
• Mantle
• Core
• The Earth is divided into three layers based upon the material it contains.
![Page 3: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/3.jpg)
The Crust
• Outer layer• 5-100 km thick• Made of light minerals
such as silicon and aluminum
• 2 types of crust– Oceanic (very dense,
made of basalt)
– Continental (less dense, made of granite)
![Page 4: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/4.jpg)
Oceanic and Continental Crust
• Oceanic Crust is thin but very dense.
![Page 5: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/5.jpg)
The Mantle
• Middle layer• Very thick layer• Contains some
aluminum and silicon but also has heavier minerals such as magnesium.
• Where lava comes from
![Page 6: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/6.jpg)
The Core
• Made mostly of iron, very heavy mineral
• 1/3 of the earth’s mass
• Very hot
• Inner core is solid
• Outer core is liquid
![Page 7: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/7.jpg)
Earth’s Layers
• How are the earth’s layers similar to an egg?
• Shell=crust• Egg white=mantle• Yolk=core
![Page 8: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/8.jpg)
A new way to divide the Earth.
• The Earth is also divided up into layers based upon the physical properties of
each layer.
• Lithosphere
• Asthenosphere
• Mesosphere
• Outer Core
• Inner Core
![Page 9: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/9.jpg)
Physical Structure of the Earth(5 Layers)
• Lithosphere- rigid outer layer (crust and part of the mantle)
• Asthenosphere- solid rock that flows slowly, found below lithosphere (like frosting) part of the mantle
• Mesosphere- middle layer, part of the mantle. very rigid magma
• Outer Core- liquid layer
• Inner Core- solid, very dense
![Page 10: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/10.jpg)
How the 2 layers line up
![Page 11: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/11.jpg)
The Layers Combined
![Page 12: Inside the Earth ppt](https://reader034.vdocuments.mx/reader034/viewer/2022052410/554e98d7b4c90573338b5229/html5/thumbnails/12.jpg)
Tectonic Plates• Earth’s crust is broken into about 19
pieces
• These plates move on top of the asthenosphere