American Geosciences Institute
American Geosciences Institute: Earth Science Week: Hands on Experiments to Test for Acid Mine Drainage
Fifteen short experiments which test acid mine damage to the streams, rivers, and creek ecosystems surrounding it.
Science Education Resource Center at Carleton College
Serc: Identifying Macroinvertebrates to Determine Health of Aquatic Ecosystem
In this hands on activity students will learn how to identify basic macroinvertebrate using a dichotomous key. They will complete a chart used by the MPCA and we will discuss why an ecosystem may not be healthy or not.