What's Inside Earth?

For today's post, we are looking at Earth's core. Also, I'm starting my third science badge, Geology. So for the next posts, I'll post about Geology - Earth. If you haven't seen my last two badges click on the link ➡️ Psychology - Astronomy. So first I'll tell you the layers of Earth's core. I hope that you like this post. Comment down below if you've learnt something new! Have a cool day!! Bye!!

Layer

There are four layers of Earth's core, Crust, Mantle, Outer Core and the Inner Core. Let's start with the Crust.

Crust

https://kidsgeo.com/geology-for-kids/earths-outer-core/

The crust is the outermost structure of the Earth's core. The thin layer is between 0-60 kilometres thick. There are two types of crust, continental crust, and oceanic crust. The Earth's crust is made up of various elements, 46.6% oxygen by weight, 27.7% silicon, 8.1% aluminium, 5% iron, 3.6% calcium, 2.8% sodium, 2.6% potassium, 2.1% magnesium. 

Mantle

The mantle is the widest section of Earth. The layer is basically solid. The layer's thickness is approximately 2,900 km. On the uppermost part of the mantle has rocks like peridotite (no.15 of 26) and eclogite (no.5 of 18). The most exciting thing that gets from the mantle is diamonds.

Outer Core

The Outer Core is about 2.400 km thick. The thickness is less than the mantle but thicker than the inner core. The layer is a liquid state, this is because it is so hot. From this liquid layer, it moves around the inner core. This creates the Earth's magnetism. 

Inner Core

The inner core is the most innermost part of Planet Earth. The inner core is believed to be made up of an iron-nickel (metal) alloy. It was once believed that the inner core was liquid, but in 1936 a seismologist, Inge Lehmann proved in theory that the inner core was solid and the outer core was liquid. The inner core's temperature is hotter than the Sun's surface temperature.

What I've Learnt

• The crust is between 0-60 km thick.
• In Earth's crust, there are several elements,
• The Mantle is the widest section of Earth's core.
• There are rocks and diamonds in the Mantle.
• From the liquid layer, it moves around the inner core.
• It was believed that the inner core was liquid.