Students can manipulate this dataset to see how conductivity varies over time at Baltimore Ecosystem Study streams.
Some potential interesting site comparisons are looking at the McDonogh stream (which has a watershed that is a mix of agricultural and suburban land uses), Pond Branch (a forested watershed within a park), Villa Nova and Dead Run (both urban watersheds).
Data was collected by Baltimore Ecosystem Study scientist Dan Dillon and the exercise was developed by teacher Mr. Richard Foot.