Green Means Clean 

Today we'll read about scientists conducting an assessment of drinking water quality in U. S. watersheds in "Green Means Clean". Then get hands-on with the included experiment to test which kind of land cover best protects water quality. All you need are a few household items, some dirt, and water! 

Article:

Green Means Cleans - The Freshwater Edition

Activity:

FACTivity - experminet (pg. 22-24)