THE EARTH Chapter 7 Notes. Layers of the Earth The Earth is divided into three layers:
Earth Layers: Physical Properties
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Earth Layers: Physical Properties
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Earth Layers: Physical Properties. Lithosphere. The outermost, rigid layer Is divided into pieces called tectonic plates Made of 2 parts 1) crust 2) rigid upper part of mantle 15-300 km. Asthenosphere. The plastic layer of mantle on which pieces of lithosphere move. 250 km - PowerPoint PPT Presentation
Transcript of Earth Layers: Physical Properties
Earth Layers: Physical Properties
Lithosphere The outermost, rigid layer Is divided into pieces called tectonic
plates Made of 2 parts 1) crust 2) rigid upper part of mantle 15-300 km
Asthenosphere The plastic
layer of mantle on which pieces of lithosphere move.
250 km Made of solid
rock Moves very
slowly
MesosphereStrong lower part of
mantleExtends from
bottom of asthenosphere to the core
2,550 km It is ‘viscous’ or
gummy (thick sticky substance between a solid & liquid)
Outer Core The Liquid layer of core Lies beneath the mantle and
surrounds the inner core 2,200 km
Inner CoreThe solid layer of
coreDenser than outer
core1,230 km