Layers of Earths Geosphere and Atmosphere At the

Layers of Earth’s : Geosphere and Atmosphere At the center of the Earth lies the Earth’s core. It consists of two layers - the inner core and the outer core. The inner core is an extremely dense sphere believed to contain large amounts of Earth’s heaviest elements like iron and nickel. It is estimated to have a radius of 1, 220 km is and over 5, 000 degees Celsius! The outer core is the only truly liquid part of the inside of the Earth, and is 2, 400 km thick. The mantle makes up almost 70% of the Earth’s total mass. All of these layers rest below the crust of the Earth, which is only 6 miles thick and represents the paper thin shell covering the rest of the planet. The troposphere is the lowest layer of the Earth’s atmosphere. This is where the majority of clouds and weather exist. Just above troposphere is the stratosphere where airplanes comfortably cruise and the ozone layer exists. Beyond the stratosphere are the mesosphere, then thermosphere, and finally the exosphere. Beyond the exosphere is “outer space. ” Exosphere Mesosphere Crust Thermosphere Stratosphere Troposphere Inner core Outer Core Mantle

Which layer is being described? Mesosphere Toposphere Inner core Crust A layer with very little air pressure, but still able to burn up most meteors coming in. where most of the air pressure and Earth’s weather is very hot, solid iron and nickel. It is solid due to the extreme pressures even though the temperatures here are well past what is needed to melt iron and nickel. solid, cool outer shell of the Earth. It is the thinnest of Earth’s layers and varies in thickness. Most of it is under water. Exosphere the last traces of our atmosphere are here; past this layer is outer space. Stratosphere a calm layer of the atmosphere with some air pressure, very little weather and the ozone layer Outer Core Thermosphere Mantle a layer made of iron and nickel, but is liquid due to the high temperatures. . A layer with so little air, we think of it as the beginnings of space. The ISS orbits here. starts about 4900 km deep and goes up to 30 km under the surface of the Earth. It has temperatures between 500 and 900 o. C. The high temperatures here allow it to flow in a similar way to a liquid