Water Quality Image Map


 


Check out this story on how 4th and 5th graders in Michigan used tracer dye 
to show that harmful bacteria were getting into the Bear Creek Watershed  from septic tanks!

Now you can go to the activity for an experiment that uses hands-on problems similar to this. 

In the activity, you'll estimate the concentration of a dye in water.  You'll also calculate the volume of an unknown amount of water, based on the mass of how much dye was dissolved in it.

 

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