Build Up and Breaking Down

Summary 1

Have you ever seen mountains in the distance?
But you know how is a mountain made?
As the crust (the first layer of the earth) move  the rocks of the crust change.
They can change position they can move up, down ,or sideways .Rocks can also change their shape.
Bu how that happen? by: weathering and erosion.
Weathering: is the breaking down of rocks into small pieces.
Erosion: is the picking up and removal of rocks fragment and others particles.
Weathering example: plant ,wind, animal, acid .
Erosion example: minerals, rocks.