In a government public school in rural Karnataka, two friends studying in the 7th standard understand and discuss how to use the H2S vial and find out water whether the drinking water they use has e. coli in it or not. They also discuss how to remove the e.coli using SODIS.
More info: Rainwater Club
Produced by: Zenrainman
Language: English
Year: 2013
Region: Karnataka, India, South Asia