The last new ELI of 2012 is 'Collapsing volcanoes - cauldron subsidence'. Try making a jelly model of the ‘cauldron subsidence’ that can occur when volcanoes erupt and collapse. By doing this activity, pupils will appreciate that large scale surface features may be formed in volcanic regions, when magma beneath drains away or erupts and removes support from a vast cylinder of rock.
The best way of cleaning up from this activity is to eat it!
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