Earth By Shaniyah

The earth has five different layers

Crust-the outer layer of the Earth, between the surface and the mantle, which is up to 40 miles deep

Mantle-loose sleeveless cloak or shawl, worn especially by women.

Outer Core-The outer core of the Earth is a fluid layer about 2,300 km (1,400 mi) thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface. ... This is also referred to as the "liquid core".

Inner Core-inner core. noun. in geology, the innermost part of a core, specif. a solid sphere in the middle of the fluid core such as the iron-nickel core of the Earth.

Continental Crust-The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. It is less dense than the material of the Earth's mantle and thus "floats" on top of it.

Oceanic Crust -the relatively thin part of the earth's crust that underlies the ocean basins. It is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments.

Lithosphere-the rigid outer part of the earth, consisting of the crust and upper mantle.

Asthenosphere-the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

Convection Currents in the Mantle-Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface.

Ice Caps on the North and South Poles-Polar ice caps are dome-shaped sheets of ice found near the North and South Poles. They form because high-latitude polar regions receive less heat from the Sun than other areas on Earth. As a result, average temperatures at the poles can be very cold.


Created with images by tpsdave - "hurricane earth satellite" • tonynetone - "Earth"

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