* Radioactive Decay: The Earth's core is incredibly hot, primarily due to the radioactive decay of elements like uranium, thorium, and potassium. This decay releases energy in the form of heat.
* Convection Currents: The heat from the core causes convection currents within the Earth's mantle. This is similar to how water boils in a pot: hot, less dense material rises, while cooler, denser material sinks.
* Plate Movement: These convection currents act on the Earth's rigid lithosphere (the crust and the uppermost part of the mantle), dragging the tectonic plates along. The plates move very slowly, typically only a few centimeters per year, but over millions of years, these movements have reshaped the Earth's continents and oceans.
In summary:
* Heat Source: Radioactive decay in the Earth's core
* Mechanism: Convection currents in the mantle
* Result: Movement of tectonic plates, driving continental drift and other geological phenomena.
