Pumice is volcanic rock that is produced when lava with high water and gas content is thrown from a volcano. The light, rocky mineral is formed as a result of lava cooling and hardening.Pumice rocks are filled with small gas bubbles.hile most of the world's supply of pumice is used in construction materials, it is also widely used as an abrasive in cleaning supplies both for personal use and for use around the home. Other People Are Reading.
By the 5th century BC, theatre had become formalized and was a major part of Athenian culture and civic pride, and this century is normally regarded as the Golden Age of Greek drama. The centerpiece of the annual Dionysia was a competition between three playwrights at the Theatre of Dionysus.
By the end of the 5th century bc, the wooden skene was replaced by a permanent stone structure. In the Roman theatre it was an elaborate building facade. The modern concept of the theatrical scene, which is an integral and functional part of the play, evolved from the Renaissance.