Muscle Mania! - Water Quality
Did you know that freshwater mussels are important organisms that improve water quality? They're also very sensitive to changes in the environment which makes them a good indicator species. Read more in "Mussel Mania". Then you become the scientist by going to look at actual streamflow data gathered by USGS and complete the alternate FACT-ivity included with the article.
Mussel Manis! - The Freshwater Edition
Streamflow data by USGS
FACTivity (pg. 88)