Investigation into scratches on rocks caused by ice

'Ice-thickness from scratch: visualising past processes by calculation
Modelling glacial striation-formation by calculation – thinking through the assumptions'.

This ELI involves a field simulation of the scratching of striations on bedrock by the debris frozen into an ice sheet, used to approximately calculate the thickness of the ice sheet and to discuss the assumptions made. The activity has been devised to enable pupils to gain a deeper understanding of the glacial processes which erode bedrock surfaces.

Related activities can be found in 'Sedimentary processes' in the Earth energy/processes category.