Water Carries Undissolved Particles 

Global Lab

Investigative questions:

How much particulate matter is suspended in our water?

How far can particles travel? What can cause them to settle out?

What difference does size make to particle transportation?

Tools: 

Light probe and Secchi dish  

Procedure:

Turbidity (t) (Background)     

Turbidity measurement procedure with Secchi dish and scales

Sharing:

Turbidity measurements at different depths.

Extension:

Light measurements at different depths