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Layers of Earth
11
LAYERS OF EARTH
by: nicole
Crust
CRUST
The crust is the layer that all people on earth can see, It's earths first layer, and though it may seem thin on the pictures, trust me its much thicker than you think. Earth has plates which move constantly (though it must be a big move if we're gonna be able to feel it), when they move they cause earthquakes, volcanoes, hills, tsunamis, and many other things we may see on as a natural disaster or something normal, like mountains.
THE MANTLE
The mantle is the thickest layers of earth by filling up 84% of earth mass and 1,802 miles long. The temperature of the mantle varies greatly, from 1000 Celsius (1832 Fahrenheit) near its boundary with the crust, to 3700 Celsius (6692 Fahrenheit) near its boundary with the core. Much of the Mantle contains Magma which erupts after having nowhere to escape from which makes the plates on the crust move and cause volcanoes and after millions of years from creating the volcanoe, it erupts.
MANTLE
OUTER CORE
The outer core covers around 35% of earths mass making it the second largest layer in earth, which makes it quite big compared to the layers beneath it. It is about 2,200 km long and its mostly full of boiling nickel, gold, diamonds and iron, which also make its the only liquid layer it heated up about until 4,500 and 5,500 degrees celsuis, (8132 and 9,932 degrees farenheit.) The outer core is also red, though most usually think its black or yellow.
OUTER
CORE
INNER CORE
The Inner core is the fourth layer of earth, making it the smallest layer, being only around 758 miles (1,220 km) long. It is a solid-metallic ball made mostly of iron. Here, temperatures reach incredible levels, there are expected to be between 7,200–8,500ºF (4,000–4,700ºC). even though the inner core is exteremly hot, it is not liquid like the outer core. This small layer is only about the size of moon, which makes it seem bigger, but since it's much smaller and the only layer that is solid, causes it to spin though it spins much faster than the earth itself.
INNER
CORE
Thank you!
thank you for watching this presentation about earth layers ! :)