In this activity, students pop a balloon in a container of sand to model caldera volcanoes and learn how lakes like Taupō and Rotorua were formed.

By the end of this activity, students should be able to:

  • demonstrate how caldera volcanoes are formed
  • demonstrate how depressions are left after the volcano erupts
  • identify Lakes Taupō and Rotorua and discuss their formation.

Download the Word file for:

  • introduction/background notes
  • what you need
  • what to do
  • extension idea.
    Published 18 August 2014, Updated 26 September 2014