Zusammenfassung der Ressource
Flussdiagrammknoten
- The Earth's core contains radioactive uranium
- Lots of heat energy is released
- The parts of the mantle closest to the core are the hottest
- Hot parts of the mantle rise because they are less dense
- They then begin to cool and start to sink
- New mantle rises up to replace older, cooling parts
- The constant rising and sinking of different parts of the mantle creates a cycle
- This cycle is known as a convection current
- Friction between the moving mantle and the crust cause tectonic plates to shift