![Using a balloon & soil to represent a volcanic caldera eruption.](http://static.sciencelearn.org.nz/images/images/000/001/039/full/caldera.png?1674165365)
Students bury the balloon in the sandpit or in a bucket of sand or soil. Students pop the balloon – this represents the eruption – and then view the caldera or crater that is left behind.
Students bury the balloon in the sandpit or in a bucket of sand or soil. Students pop the balloon – this represents the eruption – and then view the caldera or crater that is left behind.