summary #5

  The topic this time is Geolic Time.In this topic we have talk about the Geologic colum th that are the different types of rock layers  . Whit theGeologic colum we know the super position .The supers position is the in the geolic colum the bottom layer is the oldest and the top is the youngest.the relative age is the age of a rock compare with another rock.The fossil are the remain of a living thing in the earth crust.