Cross Sectional Model Earth Breaks down into 7 parts for furthe study Different colors for different layers. When upper crust is removed, inner core with layers can be seen. When layers one by one are removed you can find the periphery of each layer. Showing the layers inside the Earth with 7 detachable parts showing the interiors of Earth. Different colors for different layers. When upper crust is removed, inner core with layers can be seen. When layers one by one are removed you can find the periphery of each layer.