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  • Using a balloon & soil to represent a volcanic caldera eruption.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 4 May 2016 Size: 610 KB Referencing Hub media

    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.

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