What is in Our Water Lab Activity
Earth Science Educational Materials
Natural Resources Learning Activities
Test Samples from Local Sources of Purity
- Colorimetric detection of coliform
- Open or guided inquiry
- Created and tested by teachers
In what can be an enlightening experience, students gather water samples from local ponds, streams, rivers, or lakes and compare this water to the control samples included. A color based test detects coliform bacteria and reveals the levels of contamination present in each body of water.