click below
click below
Normal Size Small Size show me how
Layers of the Earth
- Plate Tectonics - Part 1
| Term | Definition |
|---|---|
| Lithosphere | This layer is hard, brittle (breakable), and thin. It's also the least dense, and the coolest. |
| Asthenosphere | "plastic-like". This is where the convection currents occur that move the lithospheric plates. |
| Mesosphere | Also known as the lower mantle, and has hard rock that is extremely hot. |
| Outer core | Liquid iron and nickel |
| Inner core | Solid iron and nickel |
| Earth is divided into ____________ | Layers |