I am the rocky outer layer of the Earth. 

WHO AM I?

I am considered thin compared to other layers, but I am solid.

WHO AM I?

I'm mostly made out of silicates (rocks made of compunds of silicon and oxygen) and metal.

WHO AM I?

Sometimes I consist of mainly less dense rocks that make up the land mass that you live on. 

WHO AM I?

I range in thickness from 8-75km.

WHO AM I?

I am composed of mostly dense rocks.

WHO AM I?

I am usually about 7km thick.

WHO AM I?

I separate the mantle from the crust. 

WHO AM I?

I am a hot solid with liquid properties. 

WHO AM I?

I extend about 2850km. 

WHO AM I?

From top to bottom, heat and pressure is increased.

WHO AM I?

I am made mostly of silicates and I am rich in iron and magnesium.

WHO AM I?

I am made up of three layers. 

WHO AM I?

I am made up of a layer of relatively cool, rigid rock. 

WHO AM I?

I am a layer of softer, weaker rock that can flow slowly.

WHO AM I?

I am stronger, more rigid, lower part of the mantle and I go to the upper surface of the core.

WHO AM I?

I am a large sphere of metal that occupies the center of the Earth.

WHO AM I?

I am made mostly of iron. From top to bottom, pressure increases.

WHO AM I?

I am so hot, I melt metal. My temperatures keep iron flowing, which creates Earth's magnetic field.

WHO AM I?

I am made of solid metal with very high pressure.

WHO AM I?

I have 3.6 million times more pressure that you do where you live.

WHO AM I?

It is estimated that my temperature is about 5500 degrees Celsius.

WHO AM I?

I am measured at 2260km.

WHO AM I?

I am measured at 1220 km.

WHO AM I?