Students will … illustrate the structural layers of Earth, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere. [6.10A]
Each layer of the Earth has its own unique properties.
There are three distinct layers – mantle, and core subdivided into more layers.
the crust, – which can then be Each layer is made up of specific elements .
Crust Mantle Core
layer Thinnest layer and much
than others 2 types of crust 1.
basalt) (very dense, made of 2.
(less dense, made of granite)
Thinnest mountain beneath ocean and thickest beneath ranges
crust layer Made up of more iron and magnesium so is very
occur in the mantle currents
Consists of the crust and the upper part of the mantle Solid and rocky Broken into large pieces called tectonic plates Earthquakes can occur in the lithosphere Made up of elements Oxygen and Silicon
Beneath the lithosphere Partially molten The rock is pliable or plastic-like Rock here bends, stretches, and flows The tectonic plates float on this layer
Earth’s crust is broken into about a dozen major plates and several minor plates These plates constantly move on top of the Asthenosphere
Made up of the elements iron 1/3 of the Earth’s mass The core is larger than Mars !
The core is very hot and dense and nickel
The outer core is a liquid The material of the outer core is considered molten as it is extremely hot Less dense than the inner core Made up of Iron Nickel and
The inner core is the most dense It is solid extreme even though the temperature is very hot due to the pressure The inner core is composed mostly of Iron
How are the Earth’s layers similar to an egg?
Crust and Lithosphere - rigid outer layer Mantle and Asthenosphere - solid rock that flows slowly (like hot asphalt) Outer Core liquid layer Inner Core solid, very dense
http://geomaps.wr.usgs.gov/parks/pltec/#cr ust http://pubs.usgs.gov/gip/dynamic/dynamic.