Earth's Layers
The Earth has 4 layers the crust the mantle the outer core and the inner core.The crust comes first.We walk on the crust.Next is the mantle.The mantle is hard rock.Next is the outer core.The outer core is hot liquid in the Earth.Last is the inner core.The inner core is made up of a sphere of solid material in the center of Earth.
Soil Layers
There are4 layers of soil topsoil,subsoil,parent material,and bedrock.Topsoil is first.Topsoil is dark and rich in humus.Most plants grow in topsoil.Tiny organisms live in topsoil.Next is subsoil.Subsoil is not as dark as topsoil and not as rich in humus as topsoil is.Subsoil is more clayish like.Next is parent material.Parent material is broken down rock above bedrock.Last is bedrock.Bedrock is large rock that is below parent material.All of these make up the horizon.The horizon is a word meaning a layer of soil differing from the layers above and below it.Topsoil is horizon A, subsoil is horizon B, parent material is horizon C, and bedrock horizon D.