Earth Crust
Earth Crust What lies within the Earth? The Earth gets hotter and hotter. The temperature reaches, 7000 0 C hotter than of the surface of the sun. Thus, just beneath the crust is the layer of half-molten rocks thousands of kilometers deep called the mantle. Within the earth center is the core. The outer core is made of molten iron and nickel. In the inner core, the Pressure is intense, therefore, despite being so hot, it is solid. Can anyone visit the Earth's center? It is not possible. No one has ever managed to drill more than 12 km down. Even at this depth, pleasure, are so great and the rock is so hot and soft that the drill bores close up as fast as they are drilled. What is the composition of the mantle? The mantle is made of rock like the crust. But the most common minerals here are minerals that are rare on the surface, like perovskite and olivine. How do scientists hear the Earth's interior? The vibrations of the earthquakes help us in that. Long aft...