Fieldwork: Applying 'the present is the key to the past'

The new ELI today is 'Fieldwork: Applying 'the present is the key to the past'.
This five-phase outdoor activity is used to explain how Earth scientists use the Principle of Uniformitarianism, often simply stated as ‘the present is the key to the past’, by considering the present environment and thinking how it might be preserved geologically.
It is one of many outdoor ELIs - all listed on the website in activities related to the new ELI and in 'Teaching strategies' under 'Fieldwork'.