| Term | Definition |
|---|
| 5 | Number of physical layers of the Earth |
| Lithosphere | Outermost ridged layer of the Earth consists of crust and rigid upper part of the mantle |
| Lithosphere is divided into pieces called | Tectonic Plates |
| Asthenoshere | plastic layer of the mantle. Made of solid rock that flows very slowly |
| Mesosphere | Beneath the Asthenosphere is the strong, lower part of the mantle. Extends from the bottom of the Asthenoshere to the Earth's core |
| Outer core | liquid layer of the earth's core that lies beneath that mantle and surrounds the inner core. |
| Inner core | Solid dense center of our planet. |
| What is about 6,380 km beneath the surface | Inner core |
| The listhosphere is about how many km thick? | 15 - 300 km |
| The Asthenosphere is about how may km thick? | 250 km |
| The Mesosphere is about how many km thick? | 2,550Km |
| The outer core is about how many km thick? | 2200 km |
| The Inner core is about how many km thick? | 1,230 km |
| Crust | The thin and solid outermost layer ofthe Earth above the Mantle |
| Mantle | The layer of rock betwen the Earth's crust and core |
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