The Hydrosphere is all the water. The geosphere is the solid earth. The biosphere is all living things. The atmosphere is the air around the earth.
The geosphere has 4 layers. The crust is the first layer and is the ground that we walk on. Then there is the mantle which is made of hot giant rocks for more than 1 thousand miles. The outer core is made of lava, which is made of iron and nickel. The inner core is made of iron and nickel and is as hot as the surface of the sun.
The geosphere is also the tectonic plates below the ground. Tectonic plates are pieces of Earth and when they collide there is an Earthquake.
