Laura Gilchrist:
Vertical Water Cycle! We all know this one.
Laura Gilchrist:
Vertical Water Cycle!
Laura Gilchrist:
Testing for presence of Phosphates in our waters.
Laura Gilchrist:
Urban Water Quality Testing: Phosphates
Laura Gilchrist:
She's getting a sample of rainwater Kate collected in ditch near her house
Laura Gilchrist:
Testing for Nitrates.
Laura Gilchrist:
The little-known HORIZONTAL WATER CYCLE
Laura Gilchrist:
Dissolved Oxygen Test