Tuesday, November 1, 2016

Population Changes in Surface Water


Sixth graders have been collecting water data both virtually and in real time as they compare the pond populations in EcoMUVE to specimens found in the outdoor classroom. 

One of the most serious causes of poor water quality in our county is eutrophication.  This is when nutrients flow into the water with sediment and cause algae growth.  Bacteria feed on the algae when it dies and deplete the water of oxygen.  Fish kills occur because of the lack of oxygen.

Students are working in small groups and using the data they have collected to create and analyze graphs that support the theories they have developed on why the fish are declining in population. 

The theories are not the same, but a lot of scientific reasoning is taking place while students try to prove their theory to their friends.  








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