Earth's Interior Layers Explained

Class, these are the notes from today's class on Earth's interior layers:

The Crust:

* The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers.

*The crust makes up 1% of the Earth.

* The crust of the Earth is broken into many pieces called tectonic plates.

The Mantle:

*The mantle is the layer below the crust.

*The mantle is the thickest layer of the Earth, where magma is found.

*The mantle is divided into two regions: the upper and lower sections.

The Outer Core:

* The core of the Earth is like a ball of very hot metals.

* The outer core is liquid.

* The outer core is made up of iron and nickel and is very dense.

The Inner Core:

* The inner core of the Earth has temperatures and pressures so great that the metals are squeezed together and are not able to move.

* The inner core is a solid.

Remember these facts about Models:

- A model is a simulation of a real event or thing.

- A model can be a physical object that is much smaller, more easily observed, or a simplified version of the real thing.

- Models can be mathematical.


HERE ARE SOME VIDEOS ON EARTH'S INTERIOR LAYERS: