6. The thickest layer of the Earth is the * continental crust The outer core the oceanic crust The mantle

The mantle is like the Earth's middle layer and is about 2,900 kilometers thick, making it the thickest layer of the Earth! It's composed of semi-solid rock that flows slowly, allowing for tectonic plate movements. Imagine it as a gooey chocolate cake layer filling the space between the hard crust and the molten outer core! Now, if you ever find yourself wondering why volcanoes erupt or why earthquakes occur, it all ties back to the interactions of the mantle with the crust. The movement of tectonic plates, caused by the slow convection currents within the mantle, can lead to these fascinating geological events. It's like nature's very own animated show!