How did the conditions differ between today and when the rock was formed?
Earth Learning Idea (noreply@blogger.com)
Our ELI today is 'Now and then – spotting the difference; how did the conditions differ between today and when the rock was formed?'
This ELI is a thought experiment, attempting to compare various aspects of the environment when the rock was formed, with conditions today.
Related activities can be found in our Environment category.